Home » Public Forums » GMCnet » Final Drive identification...and other questions
| Final Drive identification...and other questions [message #255953] |
Sun, 20 July 2014 18:22  |
thorndike
Messages: 406
Registered: January 2011
Location: Conifer, Colorado
Karma: 0
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Senior Member |
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After too long a delay due to circumstances beyond my control, I am back to working on the GMC!
As usual, I have a couple questions...
First, how can I identify which Final Drive has been installed in my transmission? Is there a way to tell from the outside?
I will be driving the coach from Virginia to and through the mountains in Colorado. I have been looking at installing the Fuel Injection add on sold by Jim K at Applied GMC. Does anyone have any experience with it? Are there other, recommended F.I. options that appear to be as easy to install as this unit?
I plan on replacing the brake lines with the Stainless Steel lines available from Jim K as well. Should I expect any issues installing these lines, or do they fit fairly well?
Thanks!
Robert Peesel
1976 Royale 26'
Side Dry Bath
Conifer, Colorado
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| Re: [GMCnet] Final Drive identification...and other questions [message #255977 is a reply to message #255953] |
Sun, 20 July 2014 22:31  |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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The stainless lines from applied fit my coach perfectly and were exact when compared to the old lines as far as length and bend location.
I don't think you can tell which ratio other than if you count the bolts in the final drive cover. a stock or re geared stock 307 will have 10 and the 321 has less. Eight I think.
Todd Sullivan
Sully
77 royale
Seattle
> On Jul 20, 2014, at 4:22 PM, Robert Peesel wrote:
>
> After too long a delay due to circumstances beyond my control, I am back to working on the GMC!
>
> As usual, I have a couple questions...
>
> First, how can I identify which Final Drive has been installed in my transmission? Is there a way to tell from the outside?
>
> I will be driving the coach from Virginia to and through the mountains in Colorado. I have been looking at installing the Fuel Injection add on sold
> by Jim K at Applied GMC. Does anyone have any experience with it? Are there other, recommended F.I. options that appear to be as easy to install as
> this unit?
>
> I plan on replacing the brake lines with the Stainless Steel lines available from Jim K as well. Should I expect any issues installing these lines,
> or do they fit fairly well?
>
> Thanks!
> --
> Robert Peesel
>
> 1976 Royale 26'
>
> Side Dry Bath
>
> Sterling, Va
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Final Drive identification...and other questions [message #255987 is a reply to message #255977] |
Mon, 21 July 2014 00:45 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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We are the only one that stamp the ratio on the milled face where the cover
mates.
It should be mrked MH 355, MH 370.
Sometimesthe shop that does the work for us will take short cut and stamp
35/37.
Best way is to mount a tachometer and drive on a levelarea at 60-65mph and
record the RPM.You can then go toour site under Transmission/Final and
refer to the chart.\
Our EFI unit we push is the unit bsed on the Hoewll unit with the
distributor control with the Dynamic EFI unit in the computer.
There must be over 300-400 GMC owners running them.
We have at least 10 people that are very familier with the unit and can be
conta cted 24-7 shoul you neeed assistance.
Being an Automotive Jobber, w have full access and inventory other EFI
units.
The benifit of the Howelllunit is that it is comprised of GM components
that can be purchasedat any parts store.
Whenever we need parts for the others, we need to order from the factory as
no one wants to cary parts that ar not populer.
On Sun, Jul 20, 2014 at 8:31 PM, Todd Sullivan wrote:
> The stainless lines from applied fit my coach perfectly and were exact
> when compared to the old lines as far as length and bend location.
>
> I don't think you can tell which ratio other than if you count the bolts
> in the final drive cover. a stock or re geared stock 307 will have 10 and
> the 321 has less. Eight I think.
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
>
>> On Jul 20, 2014, at 4:22 PM, Robert Peesel
> wrote:
>>
>> After too long a delay due to circumstances beyond my control, I am back
> to working on the GMC!
>>
>> As usual, I have a couple questions...
>>
>> First, how can I identify which Final Drive has been installed in my
> transmission? Is there a way to tell from the outside?
>>
>> I will be driving the coach from Virginia to and through the mountains
> in Colorado. I have been looking at installing the Fuel Injection add on
> sold
>> by Jim K at Applied GMC. Does anyone have any experience with it? Are
> there other, recommended F.I. options that appear to be as easy to install
> as
>> this unit?
>>
>> I plan on replacing the brake lines with the Stainless Steel lines
> available from Jim K as well. Should I expect any issues installing these
> lines,
>> or do they fit fairly well?
>>
>> Thanks!
>> --
>> Robert Peesel
>>
>> 1976 Royale 26'
>>
>> Side Dry Bath
>>
>> Sterling, Va
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Final Drive identification...and other questions [message #255988 is a reply to message #255987] |
Mon, 21 July 2014 01:01 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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If your going to replace the brake lines, be sure to spray all the joints
with rust penitrator and use the Line Wrench.
Best to invest in a set of good ones.
Sometimes we will use a Vise grip and clamp down onthe head of the wrench
so it lessens a chance of sliping around.Also ue a nll steel hammer to act
like an impact tool and work it both ways to break the rusted joint.
Moat of ou know tat you can always call us for help on the phone.. I only
insist that when I start telling you what to do, shot up and listen.
If you dont' I do tell lor of our customers to shut the Fu -k up and listen
as we do these all the time and in constnt cotact with others that do the
same. hose that will not listen, I will need to et a 900 line and let them
pay us to rattle their issues.
No I am not drunk, just mouthing off.
Maybe I will get off here and have a drink.
On Sun, Jul 20, 2014 at 10:45 PM, Jim Kanomata
wrote:
> We are the only one that stamp the ratio on the milled face where the
> cover mates.
> It should be mrked MH 355, MH 370.
> Sometimesthe shop that does the work for us will take short cut and stamp
> 35/37.
> Best way is to mount a tachometer and drive on a levelarea at 60-65mph and
> record the RPM.You can then go toour site under Transmission/Final and
> refer to the chart.\
> Our EFI unit we push is the unit bsed on the Hoewll unit with the
> distributor control with the Dynamic EFI unit in the computer.
> There must be over 300-400 GMC owners running them.
> We have at least 10 people that are very familier with the unit and can be
> conta cted 24-7 shoul you neeed assistance.
> Being an Automotive Jobber, w have full access and inventory other EFI
> units.
> The benifit of the Howelllunit is that it is comprised of GM components
> that can be purchasedat any parts store.
> Whenever we need parts for the others, we need to order from the factory
> as no one wants to cary parts that ar not populer.
>
>
>
>
> On Sun, Jul 20, 2014 at 8:31 PM, Todd Sullivan wrote:
>
>> The stainless lines from applied fit my coach perfectly and were exact
>> when compared to the old lines as far as length and bend location.
>>
>> I don't think you can tell which ratio other than if you count the bolts
>> in the final drive cover. a stock or re geared stock 307 will have 10 and
>> the 321 has less. Eight I think.
>>
>> Todd Sullivan
>>
>> Sully
>> 77 royale
>> Seattle
>>
>>> On Jul 20, 2014, at 4:22 PM, Robert Peesel
>> wrote:
>>>
>>> After too long a delay due to circumstances beyond my control, I am
>> back to working on the GMC!
>>>
>>> As usual, I have a couple questions...
>>>
>>> First, how can I identify which Final Drive has been installed in my
>> transmission? Is there a way to tell from the outside?
>>>
>>> I will be driving the coach from Virginia to and through the mountains
>> in Colorado. I have been looking at installing the Fuel Injection add on
>> sold
>>> by Jim K at Applied GMC. Does anyone have any experience with it? Are
>> there other, recommended F.I. options that appear to be as easy to install
>> as
>>> this unit?
>>>
>>> I plan on replacing the brake lines with the Stainless Steel lines
>> available from Jim K as well. Should I expect any issues installing these
>> lines,
>>> or do they fit fairly well?
>>>
>>> Thanks!
>>> --
>>> Robert Peesel
>>>
>>> 1976 Royale 26'
>>>
>>> Side Dry Bath
>>>
>>> Sterling, Va
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
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| Re: [GMCnet] Final Drive identification...and other questions [message #255995 is a reply to message #255988] |
Mon, 21 July 2014 06:51 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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Senior Member |
|
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Not having a good day, Jim ??
On Mon, Jul 21, 2014 at 3:01 AM, Jim Kanomata wrote:
> If your going to replace the brake lines, be sure to spray all the joints
> with rust penitrator and use the Line Wrench.
> Best to invest in a set of good ones.
> Sometimes we will use a Vise grip and clamp down onthe head of the wrench
> so it lessens a chance of sliping around.Also ue a nll steel hammer to act
> like an impact tool and work it both ways to break the rusted joint.
> Moat of ou know tat you can always call us for help on the phone.. I only
> insist that when I start telling you what to do, shot up and listen.
> If you dont' I do tell lor of our customers to shut the Fu -k up and listen
> as we do these all the time and in constnt cotact with others that do the
> same. hose that will not listen, I will need to et a 900 line and let them
> pay us to rattle their issues.
> No I am not drunk, just mouthing off.
> Maybe I will get off here and have a drink.
>
>
> On Sun, Jul 20, 2014 at 10:45 PM, Jim Kanomata
> wrote:
>
>> We are the only one that stamp the ratio on the milled face where the
>> cover mates.
>> It should be mrked MH 355, MH 370.
>> Sometimesthe shop that does the work for us will take short cut and stamp
>> 35/37.
>> Best way is to mount a tachometer and drive on a levelarea at 60-65mph
> and
>> record the RPM.You can then go toour site under Transmission/Final and
>> refer to the chart.\
>> Our EFI unit we push is the unit bsed on the Hoewll unit with the
>> distributor control with the Dynamic EFI unit in the computer.
>> There must be over 300-400 GMC owners running them.
>> We have at least 10 people that are very familier with the unit and can
> be
>> conta cted 24-7 shoul you neeed assistance.
>> Being an Automotive Jobber, w have full access and inventory other EFI
>> units.
>> The benifit of the Howelllunit is that it is comprised of GM components
>> that can be purchasedat any parts store.
>> Whenever we need parts for the others, we need to order from the factory
>> as no one wants to cary parts that ar not populer.
>>
>>
>>
>>
>> On Sun, Jul 20, 2014 at 8:31 PM, Todd Sullivan
> wrote:
>>
>>> The stainless lines from applied fit my coach perfectly and were exact
>>> when compared to the old lines as far as length and bend location.
>>>
>>> I don't think you can tell which ratio other than if you count the bolts
>>> in the final drive cover. a stock or re geared stock 307 will have 10
> and
>>> the 321 has less. Eight I think.
>>>
>>> Todd Sullivan
>>>
>>> Sully
>>> 77 royale
>>> Seattle
>>>
>>>> On Jul 20, 2014, at 4:22 PM, Robert Peesel
>>> wrote:
>>>>
>>>> After too long a delay due to circumstances beyond my control, I am
>>> back to working on the GMC!
>>>>
>>>> As usual, I have a couple questions...
>>>>
>>>> First, how can I identify which Final Drive has been installed in my
>>> transmission? Is there a way to tell from the outside?
>>>>
>>>> I will be driving the coach from Virginia to and through the mountains
>>> in Colorado. I have been looking at installing the Fuel Injection add
> on
>>> sold
>>>> by Jim K at Applied GMC. Does anyone have any experience with it?
> Are
>>> there other, recommended F.I. options that appear to be as easy to
> install
>>> as
>>>> this unit?
>>>>
>>>> I plan on replacing the brake lines with the Stainless Steel lines
>>> available from Jim K as well. Should I expect any issues installing
> these
>>> lines,
>>>> or do they fit fairly well?
>>>>
>>>> Thanks!
>>>> --
>>>> Robert Peesel
>>>>
>>>> 1976 Royale 26'
>>>>
>>>> Side Dry Bath
>>>>
>>>> Sterling, Va
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>>
>>
>>
>>
>> --
>> Jim Kanomata
>> Applied/GMC, Fremont,CA
>> jimk@appliedairfilters.com
>> http://www.appliedgmc.com
>> 1-800-752-7502
>>
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
* This is my second trip through the 60's; the first time the drugs were
better !
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| Re: [GMCnet] Final Drive identification...and other questions [message #256005 is a reply to message #255977] |
Mon, 21 July 2014 09:31 |
Tom Whitton
Messages: 235
Registered: February 2004
Location: Paducah, KY
Karma: 0
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Senior Member |
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The ratio of a final drive can be determined by checking the RPM of the engine at various speeds then referring to the chart below from Jim K's site.
ENGINE RPM at ROAD SPEED
GEAR TEETH
Final Ratio
RPM at
RPM at
RPM at
RPM at
RPM at
RPM at
Pinion
Ring
50MPH
55MPH
60MP
65MPH
70MH
75MP
Gear
Gear
Original
3.07
1900
2090
2280
2470
2660
2850
14
43
3.42
2125
2350
2550
2760
2980
3150
12
41
3.55
2200
2420
2640
2860
3080
3300
11
39
3.66
2274
2500
2730
2955
3183
3412
-
-
3.7
2300
2530
2760
2990
3220
3450
10
37
4.1
2500
2750
3000
3250
3500
3750
-
-
Above figures were derived from various methods. Tires: 8.75 x 16.5 or 225/75 x 16
Tom Whitton
26 foot updated GMC
Paducah, KY
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| Re: [GMCnet] Final Drive identification...and other questions [message #256008 is a reply to message #255988] |
Mon, 21 July 2014 12:01 |
thorndike
Messages: 406
Registered: January 2011
Location: Conifer, Colorado
Karma: 0
|
Senior Member |
|
|
Jim,
Thanks for the response! You have no worries about me listening. You were immensely helpful when I was installing the disc brakes so I learned to listen well!
Having been in the technical service industry for 25 years, I know when to listen to the experts. I just wish my clients did as well.
As soon as I get my purchase list together (and secured funding from SWMBO) I will give you a call.
Thanks again,
Bob
Robert Peesel
1976 Royale 26'
Side Dry Bath
Conifer, Colorado
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| Re: [GMCnet] Final Drive identification...and other questions [message #256088 is a reply to message #256008] |
Tue, 22 July 2014 02:00 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
I can tell you what kind of mechanics I have, they do not listen and do a
mediocre job and bl aims other things and not willing to hold them self
accountable.
Our guys on our Air Filter side can do a better job, but we need them there.
On Mon, Jul 21, 2014 at 10:02 AM, Robert Peesel wrote:
> Jim,
>
> Thanks for the response! You have no worries about me listening. You
> were immensely helpful when I was installing the disc brakes so I learned to
> listen well!
>
> Having been in the technical service industry for 25 years, I know when to
> listen to the experts. I just wish my clients did as well.
>
>
> As soon as I get my purchase list together (and secured funding from
> SWMBO) I will give you a call.
>
> Thanks again,
>
> Bob
>
>
>
> --
> Robert Peesel
>
> 1976 Royale 26'
>
> Side Dry Bath
>
> Sterling, Va
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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