Home » Public Forums » GMCnet » Do I really have a 3.42 final drive?? (searching doesn't work for 3.42...)
| Do I really have a 3.42 final drive?? [message #104069] |
Sun, 24 October 2010 20:14  |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
|
Senior Member |
|
|
I haven't done a lot of driving in the old beast as it needed a few minor things like engine, front bearings, gas tanks, exhaust...
Any way, I installed a tach a while ago, and yesterday took it out for a spin.
So I noticed that at 60, by the speedo, I was running just under 2500 rpm. I was thinking 2450.
According to Jims chart thats a 3.42 final drive ratio??
The speedo is really close, or slow if anything.
I do not see a ratio adaptor on the speedo cable.
This coach was redone in 2002 and was set up for towing with a big honkin hitch and an electric brake controller.
Do I rally have a 3.42??
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
|
|
|
|
|
|
|
|
| Re: Do I really have a 3.42 final drive?? [message #104076 is a reply to message #104069] |
Sun, 24 October 2010 20:40  |
|
|
Are you using the speedometer to calculate your speed? If so, switch to a GPS for the true speed of your coach.
Speedometers are very often wrong.
John Ruff
| Keith V wrote on Sun, 24 October 2010 18:14 |
Do I rally have a 3.42??
|
John Ruff
Chandler, AZ
1975 Eleganza
WA3RIG
If I use ZDDP in a new car - will the tappets go flat?
|
|
|
|
| Re: Do I really have a 3.42 final drive?? [message #104079 is a reply to message #104076] |
Sun, 24 October 2010 20:59 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
|
Senior Member |
|
|
No worries Jim, That just means I won't have to buy one from you, sorry!
And, I am actually happy, surprised, but happy.
I just assumed it had the stock FD in it.
If I were to put in a new FD it would probably be a 3.70
Personally I don't really care, if it's 3.42, 3.46, or 3.5, they are all better than 3.07 which I cannot believe they put in a 12000 lb vehicle.
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
|
|
|
|
| Re: Do I really have a 3.42 final drive?? [message #104156 is a reply to message #104076] |
Mon, 25 October 2010 14:42 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
| John Ruff wrote on Sun, 24 October 2010 18:40 |
Are you using the speedometer to calculate your speed? If so, switch to a GPS for the true speed of your coach.
Speedometers are very often wrong.
|
Keep in mind most GPS calculate as speed as straight lines between two points. They might read "a little slower" than true road speed on hilly or curvy roads. They should be VERY accurate on straight and level roads.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
|
|
|
|
| Re: Do I really have a 3.42 final drive?? [message #104160 is a reply to message #104069] |
Mon, 25 October 2010 14:58 |
 |
jaholland
Messages: 565
Registered: June 2010
Location: Sweet Home Alebamy
Karma: 0
|
Senior Member |
|
|
| Keith V wrote on Sun, 24 October 2010 20:14 |
I haven't done a lot of driving in the old beast
as it needed a few minor things like engine, front bearings, gas tanks, exhaust...
Any way, I installed a tach a while ago, and yesterday took it out for a spin.
So I noticed that at 60, by the speedo, I was running just under 2500 rpm.
I was thinking 2450.
According to Jims chart thats a 3.42 final drive ratio??
The speedo is really close, or slow if anything.
I do not see a ratio adaptor on the speedo cable.
This coach was redone in 2002 and was set up for towing with a big honkin hitch
and an electric brake controller.
Do I rally have a 3.42??
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Keith;
It sounds like you have a 355 ~
Since you will not be doing a lot of towins and seem to be a nice guy
I would be willing to let you swap it out for my 307 ~
Just pull your 355 and bring it on down, then you get here you can pull my 307
and put your 355 in my coach ~ That Way You'll Have A Good 307 and on the job EXPERIEBCE `
~ Joe ~
Just Want To Help ~
/_]*[__][] *[__|] ~ * '73 TZE063V101887 "
"
O----------OO--]* ~ '78 TZE168V100234 "
"
" Joe & Lavelle " "
"
'sweet home alebamy'
|
|
|
|
| Re: [GMCnet] Do I really have a 3.42 final drive?? [message #104162 is a reply to message #104160] |
Mon, 25 October 2010 15:04 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
Joe, is that kinda like having your cake and eating it too? Probably won't
have too many takers for that deal, but keep asking, you never know.
Jim Hupy (I know you are jokin')
Salem, Or
78 Royale 403
On Mon, Oct 25, 2010 at 12:58 PM, J A Holland <acts238bishop@yahoo.com>wrote:
>
>
> Keith V wrote on Sun, 24 October 2010 20:14
> > I haven't done a lot of driving in the old beast
> > as it needed a few minor things like engine, front bearings, gas tanks,
> exhaust...
> >
> > Any way, I installed a tach a while ago, and yesterday took it out for a
> spin.
> >
> > So I noticed that at 60, by the speedo, I was running just under 2500
> rpm.
> > I was thinking 2450.
> >
> > According to Jims chart thats a 3.42 final drive ratio??
> >
> > The speedo is really close, or slow if anything.
> > I do not see a ratio adaptor on the speedo cable.
> >
> > This coach was redone in 2002 and was set up for towing with a big honkin
> hitch
> > and an electric brake controller.
> >
> > Do I rally have a 3.42??
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> Keith;
> It sounds like you have a 355 ~
>
> Since you will not be doing a lot of towins and seem to be a nice guy
> I would be willing to let you swap it out for my 307 ~
>
> Just pull your 355 and bring it on down, then you get here you can pull my
> 307
> and put your 355 in my coach ~ That Way You'll Have A Good 307 and on the
> job EXPERIEBCE `
>
> ~ Joe ~
> Just Want To Help ~
>
> --
> Joe & Lavelle
>
> '65 6cyl Cortez/'68 8cyl Cortez/
>
> '73 26' Canyonlands/
>
> http://www.facebook.com/album.php?aid=2056676&id=1266255830&l=7a962eb8eb
>
> '78 26'Eleganza II/
> http://www.facebook.com/album.php?aid=2035030&id=1266255830&l=5536e612f6
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Do I really have a 3.42 final drive?? [message #104185 is a reply to message #104156] |
Mon, 25 October 2010 17:00 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
|
Senior Member |
|
|
| mike miller wrote on Mon, 25 October 2010 14:42 |
| John Ruff wrote on Sun, 24 October 2010 18:40 |
Are you using the speedometer to calculate your speed? If so, switch to a GPS for the true speed of your coach.
Speedometers are very often wrong.
|
Keep in mind most GPS calculate as speed as straight lines between two points. They might read "a little slower" than true road speed on hilly or curvy roads. They should be VERY accurate on straight and level roads.
|
As someone who has written software that talks to GPSs, I really really am skeptical about using one to measure speed, or anything really.
GPSs do a LOT of filtering and then look at the map to see where it thinks you should be. It also looks at the direction you were traveling and dead reckons where you should be by now.
This of course is the cheap ones they put in cars and on dogs and things. not the military versions...
We did a project for keeping track of things off road where there are no checks, and well, lets just say one of the checks were to see if the, say dog, was suddenly thousands of feet out and 6 feet above the Pacific ocean...
I'll use a stopwatch and mile markers, thank you very much...
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
|
|
|
|
|
|
| Re: [GMCnet] Do I really have a 3.42 final drive?? [message #104232 is a reply to message #104185] |
Mon, 25 October 2010 21:44 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
Had a funny happening with my GPS. We were on the Kingston to Edmonds Ferry
boat with the GMC. Dead stopped in the bowels of the beast, surrounded by
cars also not moving. My GPS kept telling me"You are exceeding the speed
limit" Obviously they are only a machine, created by a human, and subject to
failures too, just like me.
Jim Hupy
Salem, Or
78 Royal 403 (Too fast, even while standing still)
On Mon, Oct 25, 2010 at 3:00 PM, Keith V <my427v8@hotmail.com> wrote:
>
>
> mike miller wrote on Mon, 25 October 2010 14:42
> > John Ruff wrote on Sun, 24 October 2010 18:40
> > > Are you using the speedometer to calculate your speed? If so, switch
> to a GPS for the true speed of your coach.
> > >
> > > Speedometers are very often wrong.
> >
> >
> > Keep in mind most GPS calculate as speed as straight lines between two
> points. They might read "a little slower" than true road speed on hilly or
> curvy roads. They should be VERY accurate on straight and level roads.
>
>
>
> As someone who has written software that talks to GPSs, I really really am
> skeptical about using one to measure speed, or anything really.
> GPSs do a LOT of filtering and then look at the map to see where it thinks
> you should be. It also looks at the direction you were traveling and dead
> reckons where you should be by now.
> This of course is the cheap ones they put in cars and on dogs and things.
> not the military versions...
>
> We did a project for keeping track of things off road where there are no
> checks, and well, lets just say one of the checks were to see if the, say
> dog, was suddenly thousands of feet out and 6 feet above the Pacific
> ocean...
>
> I'll use a stopwatch and mile markers, thank you very much...
> --
> Keith
> 69 Vette
> 29 Dodge
> 75 Royale GMC
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] Do I really have a 3.42 final drive?? [message #104233 is a reply to message #104232] |
Mon, 25 October 2010 21:48 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
|
Senior Member |
|
|
Your signal reception was intermittent. Sometimes, in those cases,
your distance moved between fixes will indicate a great distance
moved in a short time, giving rise to much greater indicated speeds
that actual. I have it happen to me when I am in areas with poor
visibility of the satellites.
* * * * * * * * * * * *
* D C "Mac" Macdonald *
* Amateur Radio K2GKK *
* USAF & FAA, Retired *
** Oklahoma City, OK **
* * * "Money Pit" * * *
* * ex-Palm Beach, 76 *
* * * * * * * * * * * *
* "An unarmed man can but flee *
* from evil. Evil can NEVER be *
* overcome by flight FROM it." *
> Date: Mon, 25 Oct 2010 19:44:40 -0700
> From: jamesh1296@gmail.com
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Do I really have a 3.42 final drive??
>
> Had a funny happening with my GPS. We were on the Kingston to Edmonds Ferry
> boat with the GMC. Dead stopped in the bowels of the beast, surrounded by
> cars also not moving. My GPS kept telling me"You are exceeding the speed
> limit" Obviously they are only a machine, created by a human, and subject to
> failures too, just like me.
> Jim Hupy
> Salem, Or
> 78 Royal 403 (Too fast, even while standing still)
>
> On Mon, Oct 25, 2010 at 3:00 PM, Keith V <my427v8@hotmail.com> wrote:
>
> >
> >
> > mike miller wrote on Mon, 25 October 2010 14:42
> > > John Ruff wrote on Sun, 24 October 2010 18:40
> > > > Are you using the speedometer to calculate your speed? If so, switch
> > to a GPS for the true speed of your coach.
> > > >
> > > > Speedometers are very often wrong.
> > >
> > >
> > > Keep in mind most GPS calculate as speed as straight lines between two
> > points. They might read "a little slower" than true road speed on hilly or
> > curvy roads. They should be VERY accurate on straight and level roads.
> >
> >
> >
> > As someone who has written software that talks to GPSs, I really really am
> > skeptical about using one to measure speed, or anything really.
> > GPSs do a LOT of filtering and then look at the map to see where it thinks
> > you should be. It also looks at the direction you were traveling and dead
> > reckons where you should be by now.
> > This of course is the cheap ones they put in cars and on dogs and things.
> > not the military versions...
> >
> > We did a project for keeping track of things off road where there are no
> > checks, and well, lets just say one of the checks were to see if the, say
> > dog, was suddenly thousands of feet out and 6 feet above the Pacific
> > ocean...
> >
> > I'll use a stopwatch and mile markers, thank you very much...
> > --
> > Keith
> > 69 Vette
> > 29 Dodge
> > 75 Royale GMC
> > _______________________________________________
> > GMCnet mailing list
> > List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
|
|
| Re: [GMCnet] Do I really have a 3.42 final drive?? [message #104238 is a reply to message #104234] |
Mon, 25 October 2010 22:24 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Roger,
You gotta stop fillin' up with Tennessee moonshine! ;-)
Regards,
Rob M.
USAussie
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Roger Black
Sent: Monday, October 25, 2010 9:59 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Do I really have a 3.42 final drive??
We all know that GPS is more accurate. Just to prove it, look at the
following photo of my GMC GPS. On the middle line on the right is the
max speed of the vehicle. A new world record for the GMC. Mine's
faster cause it's smaller.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=31044&title=img-00211&
cat=3822
Roger Black
77 Birchaven
Burns, Tn
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
Goto Forum:
Current Time: Wed Oct 02 11:20:37 CDT 2024
Total time taken to generate the page: 0.01661 seconds
|
GMCforum
Search
Help
Register
Login
Home
