Final Drive Gasket

[jerry burt]

After our 8 day trip to Ogden Ut. over Donner Pass (7000ft+) Tehachapi back home and a total of 1700 miles. With no problems. We managed to go during
their record breaking heatwave of 100+ degrees. The stretch between Salt Lake City and Las Vegas was the worst as we got a late start and traveled
through the heat of the day. When we got home, I changed eng, trans, gen, and final drive oils and sent samples in for analysis. They all came back in
excellent shape. (scary) Much better than I expected.

Now, doing research I found an old thread discussing final drive venting and the correct gasket being a double gasket. My pan was installed with
silicone and no gskt. Naturally the vent hole was blocked. The gasket I got has the cutout maze to accommodate the vent but it is a single thickness.

My question is, will this have enough space to allow proper venting or do I need a different gasket?
I think I just answered my own question but, we'll see.
Thanks,
JerryB

BTW: Don't stop for gas at Terrible Herbst South of Vegas. Almost twice the price as in town.
--
Patti & Jerry Burt Fresno, CA.
73 Gmc 26' Canyon Lands
77 Palm Beach - Parts Coach
Members: FMCA - GMCMI - GMCWS
A truly happy person is one who can enjoy the scenery on a detour.

 

[jim kanomata1]

Should you elect to use some sealant, spread it really thin around the vent
groove.
There is also a 2 pin hole on the driver side shaft seal.

On Fri, Sep 27, 2019 at 6:28 PM Jerry Burt via Gmclist <

> After our 8 day trip to Ogden Ut. over Donner Pass (7000ft+) Tehachapi
> back home and a total of 1700 miles. With no problems. We managed to go
> during
> their record breaking heatwave of 100+ degrees. The stretch between Salt
> Lake City and Las Vegas was the worst as we got a late start and traveled
> through the heat of the day. When we got home, I changed eng, trans, gen,
> and final drive oils and sent samples in for analysis. They all came back in
> excellent shape. (scary) Much better than I expected.
>
> Now, doing research I found an old thread discussing final drive venting
> and the correct gasket being a double gasket. My pan was installed with
> silicone and no gskt. Naturally the vent hole was blocked. The gasket I
> got has the cutout maze to accommodate the vent but it is a single
> thickness.
>
>
> My question is, will this have enough space to allow proper venting or do
> I need a different gasket?
> I think I just answered my own question but, we'll see.
> Thanks,
> JerryB
>
> BTW: Don't stop for gas at Terrible Herbst South of Vegas. Almost twice
> the price as in town.
> --
> Patti & Jerry Burt Fresno, CA.
> 73 Gmc 26' Canyon Lands
> 77 Palm Beach - Parts Coach
> Members: FMCA - GMCMI - GMCWS
> A truly happy person is one who can enjoy the scenery on a detour.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

 

[jerry burt]

Thanks Jim.
--
Patti & Jerry Burt Fresno, CA.
73 Gmc 26' Canyon Lands
77 Palm Beach - Parts Coach
Members: FMCA - GMCMI - GMCWS
A truly happy person is one who can enjoy the scenery on a detour.