| Final Drive question [message #307142] |
Wed, 14 September 2016 18:17  |
Beach Coach
Messages: 50
Registered: December 2011
Karma: 1
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Today I removed the final drive cover to change the gear oil and to install the Ragusa final drive cover. After you remove the final drive cover; how do you determine the final drive ratio?
Thanks,
Hugh MacDougall
hugh MacDougall
Antigonish, Nova Scotia
1975 Eleganza II
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| Re: [GMCnet] Final Drive question [message #307143 is a reply to message #307142] |
Wed, 14 September 2016 18:19  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Count the teeth on the ring gear and call me so I can look it up for you.
On Wed, Sep 14, 2016 at 4:17 PM, Beach Coach wrote:
> Today I removed the final drive cover to change the gear oil and to
> install the Ragusa final drive cover. After you remove the final drive
> cover; how
> do you determine the final drive ratio?
>
> Thanks,
>
> Hugh MacDougall
> --
> MacDougall
> Antigonish, Nova Scotia
> 1975 Eleganza II, 1977 Transmode
>
>
> _______________________________________________
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: Final Drive question [message #307152 is a reply to message #307142] |
Wed, 14 September 2016 19:06 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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To Jim K.and all, some final drives in some vehicles have the tooth count for the ring gear
and the pinion stamped on the outer part of the ring gear and somewhere (maybe the pinion shaft)
of the pinion gear, as it's maybe possible that some ratios may have the same pinion gear count as
as different ratio, but the gears must be used in sets as the gears can actually have different size teeth
but the same count. ( So I'm told.) Nissan(Datsun) Z cars and 510's 610's etc are examples I know of.
Do GMC Motorhomes have the tooth count stamped, engraved or whatever somewhere on the gears?
Thanks in advance
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: [GMCnet] Final Drive question [message #307162 is a reply to message #307152] |
Wed, 14 September 2016 20:12 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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They do on factory gearsets, not always on aftermarket stuff.
Jim Hupy
On Sep 14, 2016 5:07 PM, "Dave King" wrote:
> To Jim K.and all, some final drives in some vehicles have the tooth count
> for the ring gear
> and the pinion stamped on the outer part of the ring gear and somewhere
> (maybe the pinion shaft)
> of the pinion gear, as it's maybe possible that some ratios may have the
> same pinion gear count as
> as different ratio, but the gears must be used in sets as the gears can
> actually have different size teeth
> but the same count. ( So I'm told.) Nissan(Datsun) Z cars and 510's 610's
> etc are examples I know of.
> Do GMC Motorhomes have the tooth count stamped, engraved or whatever
> somewhere on the gears?
> Thanks in advance
>
> --
> DAVE KING
> lurker, wannabe
> Toronto, Ontario, Canada
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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| Re: Final Drive question [message #307179 is a reply to message #307142] |
Thu, 15 September 2016 08:18 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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# of pinion teeth\# of ring teeth=ratio.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Final Drive question [message #307209 is a reply to message #307179] |
Thu, 15 September 2016 23:05 |
mrgmc3
Messages: 210
Registered: September 2013
Location: W Washington
Karma: 2
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Johnny Bridges wrote on Thu, 15 September 2016 08:18
# of ring teeth / # of pinion teeth = ratio.
--johnny
There, fixed it for you
Chris Geils - Twin Cities / W Wa
1978 26' Kingsley w/ very few mods; PD9040, aux trans cooler, one repaint in stock colors, R134a, Al rad, Alcoas, 54k mi
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| Re: [GMCnet] Final Drive question [message #307210 is a reply to message #307209] |
Thu, 15 September 2016 23:12 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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And may it be the only time you want “LSD” (Limited Slip Differential)…..
Dolph
DE N8JPC
Wheeling, West Virginia
1977 26’ ex-PalmBeach
1-Ton, Sullybilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010
“The Aluminum and Fiberglass Mistress"
> On Sep 16, 2016, at 12:05 AM, Chris Geils wrote:
>
> Johnny Bridges wrote on Thu, 15 September 2016 08:18
>> # of ring teeth / # of pinion teeth = ratio.
>>
>> --johnny
>
>
> There, fixed it for you
> --
> Chris Geils - Twin Cities
> 1978 26' Kingsley w/ very few mods; Headers, Progressive Dynamics 9040, aux trans cooler, one repaint in stock colors, R134a, Al rad, 49k mi
>
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| Re: Final Drive question [message #307216 is a reply to message #307142] |
Fri, 16 September 2016 07:30 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
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It wasn't broken:)
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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