While im there question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

don t. - 72gmc · 04-26-2002, 07:52 AM

Started tearing up the brakes on "my toy", gonna put all new back on. Since I'll have the rear wh. cylinders off, I'll check the rear end/axle. I've done rear bearings/seals on an 89 s-15 & 94 chevy van. Both were similar, no real big deal except getting the bearings out. Haven't read the book yet but im thinking this one aint much different? I don't know what kinda rear end I have but from other posts, I think its a Dana of some kind. The only # I found was c-30255(everything else is buried in grease/crud). Aynthing else I should look for/at when its open?
Thanks.....don t. .....

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It aint gonna be a trailer queen, its gotta work, just like me.
3/4 ton,350 w/HEI, 79 q-jet, th400.

Mike C · 04-26-2002, 03:15 PM

If it has the one piece cast center with a rear cover it is the Dana. If it has a bolt in rear that is almost perfectly round AND a bolt in front than you've got the corporate. Also if it is a Dana 60, it will have a 60 cast into the webbing at the lower right side rear of the cover.

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70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable

don t. - 72gmc · 04-26-2002, 05:59 PM

I've read the book, seems easy enough. It aint leaking anywhere, so thats a plus. Not sure what they mean by full floating. Except for the axle being outside the rear hubs, seems like any other rearend. Are there numbers anywhere else on the rearend?
Thanks....don t. .....

------------------
It aint gonna be a trailer queen, its gotta work, just like me.
3/4 ton,350 w/HEI, 79 q-jet, th400.

04-26-2002, 07:52 AM	#1
don t. - 72gmc Registered User Join Date: Dec 2001 Location: harvard, il. USA Posts: 389	While im there question Started tearing up the brakes on "my toy", gonna put all new back on. Since I'll have the rear wh. cylinders off, I'll check the rear end/axle. I've done rear bearings/seals on an 89 s-15 & 94 chevy van. Both were similar, no real big deal except getting the bearings out. Haven't read the book yet but im thinking this one aint much different? I don't know what kinda rear end I have but from other posts, I think its a Dana of some kind. The only # I found was c-30255(everything else is buried in grease/crud). Aynthing else I should look for/at when its open? Thanks.....don t. ..... ------------------ It aint gonna be a trailer queen, its gotta work, just like me. 3/4 ton,350 w/HEI, 79 q-jet, th400.

04-26-2002, 03:15 PM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	If it has the one piece cast center with a rear cover it is the Dana. If it has a bolt in rear that is almost perfectly round AND a bolt in front than you've got the corporate. Also if it is a Dana 60, it will have a 60 cast into the webbing at the lower right side rear of the cover. ------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

04-26-2002, 05:59 PM	#3
don t. - 72gmc Registered User Join Date: Dec 2001 Location: harvard, il. USA Posts: 389	I've read the book, seems easy enough. It aint leaking anywhere, so thats a plus. Not sure what they mean by full floating. Except for the axle being outside the rear hubs, seems like any other rearend. Are there numbers anywhere else on the rearend? Thanks....don t. ..... ------------------ It aint gonna be a trailer queen, its gotta work, just like me. 3/4 ton,350 w/HEI, 79 q-jet, th400.



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