Quick question on 3/4 ton rear install. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TERRYP · 01-04-2003, 01:57 AM

On my '68 C-20, I aminstalling the 'pumpkin' on an Eaton-Type axle. Does that side of the differential get a gasket? I cannot tell from the looks of the old surfaces.

Thanks...

jostrans68 · 01-04-2003, 03:43 AM

It had one on mine I just put mine back in and I used silicone it will set a few months anyways so should be ok.. I have never used gaskets on either side of any of my others..My .02 Jack

TERRYP · 01-04-2003, 04:19 AM

thanks, think I'll use ultra black, and use the gasket I bought on the backside, might as well use it.

**COBALT** · 01-04-2003, 05:25 AM

Silicone II Window & Door sealant from Home Depot (blue, black and gold cauk tube). I use it on my differential and when I install intake gaskets. Zero leaks.

Duallie · 01-05-2003, 12:04 AM

There is supposed to be a thin paper gasket in front and a thicker gasket in back. Same bolt pattern front and rear, too.

01-04-2003, 01:57 AM	#1
TERRYP GYRO GEARLOOSE Join Date: Jun 2000 Location: Nevada City, CAEverett, WA Posts: 361	Quick question on 3/4 ton rear install. On my '68 C-20, I aminstalling the 'pumpkin' on an Eaton-Type axle. Does that side of the differential get a gasket? I cannot tell from the looks of the old surfaces. Thanks... __________________ Nevada City, CA Everett, Washington 57 3/4 rat, 235, 3spd 66 C-10 Panel, SWB. 350 from '68, 200R4 tranny, 3.07 rear ratio, restoring 68 C10 LWB 350 4spd, 4.56 rear dump runner 82 Camaro, 305, THM-200-R4 84 Monte Carlo 305 TH350, land tuna 85 Tercel SW, snow runner DISGRACED OUTLAW MEMBER OF THE DRUM BRAKE CLUB

01-04-2003, 03:43 AM	#2
jostrans68 Jostrans68 Join Date: Mar 2001 Location: Bloomington indiana Posts: 1,182	It had one on mine I just put mine back in and I used silicone it will set a few months anyways so should be ok.. I have never used gaskets on either side of any of my others..My .02 Jack __________________ [CGTW Member former 67-72 now with a 96 silverado

01-04-2003, 04:19 AM	#3
TERRYP GYRO GEARLOOSE Join Date: Jun 2000 Location: Nevada City, CAEverett, WA Posts: 361	thanks, think I'll use ultra black, and use the gasket I bought on the backside, might as well use it. __________________ Nevada City, CA Everett, Washington 57 3/4 rat, 235, 3spd 66 C-10 Panel, SWB. 350 from '68, 200R4 tranny, 3.07 rear ratio, restoring 68 C10 LWB 350 4spd, 4.56 rear dump runner 82 Camaro, 305, THM-200-R4 84 Monte Carlo 305 TH350, land tuna 85 Tercel SW, snow runner DISGRACED OUTLAW MEMBER OF THE DRUM BRAKE CLUB

01-04-2003, 05:25 AM	#4
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Silicone II Window & Door sealant from Home Depot (blue, black and gold cauk tube). I use it on my differential and when I install intake gaskets. Zero leaks. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

01-05-2003, 12:04 AM	#5
Duallie Registered User Join Date: Feb 2001 Location: Nikiski, Alaska Posts: 477	There is supposed to be a thin paper gasket in front and a thicker gasket in back. Same bolt pattern front and rear, too. __________________ Just as if I knew what I was doin'

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