which rearend is better - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**desertnick69** · 11-28-2013, 10:49 PM

I have two C-20's, one a 1969, the other is a 1970. The 1969 has coils with the round 14 bolt "corperate" rearend, the 1970 has a 14 bolt also but is not round. which is better, stronger? THe top pic is what the 69 has but with coil spring

Imperial Kustom · 11-29-2013, 05:58 AM

12 bolt hands down. Stronger axles and better and cheaper parts availability with good aftermarket support which is lacking for the old eaton unit.

andrewmp6 · 12-02-2013, 02:59 AM

The left one is a eaton rear end has almost no aftermarket for it,The right picture i can't tell with out seeing the whole diff cover it could be a dana 60 not sure.Really any rear end other then that eaton will have a good aftermarket to be built as strong as you want it to be.

ERASER5 · 12-02-2013, 07:59 AM

Little know fact. Almost all of the 14 bolt parts can be swapped into an Eaton HO52. There is a thread on it with the what fits and what needs adapted, and what looks like it won't, but does.

Eatons are about as strong as it gets, but the Gov Lock leave something to be desired.

11-28-2013, 10:49 PM	#1
desertnick69 Senior Member Join Date: Jan 2012 Location: Phoenix, Arizona Posts: 498	which rearend is better I have two C-20's, one a 1969, the other is a 1970. The 1969 has coils with the round 14 bolt "corperate" rearend, the 1970 has a 14 bolt also but is not round. which is better, stronger? THe top pic is what the 69 has but with coil spring Attached Images Last edited by desertnick69; 11-28-2013 at 10:56 PM. Reason: Adding pics

11-29-2013, 05:58 AM	#2
Imperial Kustom 100% gearhead Join Date: Apr 2007 Location: Boise, Idaho Posts: 313	Re: which rearend is better 12 bolt hands down. Stronger axles and better and cheaper parts availability with good aftermarket support which is lacking for the old eaton unit. __________________ Imperial Kustom LLC Meridian Idaho. I never stopped playing with cars, they just got bigger.

12-02-2013, 02:59 AM	#3
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: which rearend is better The left one is a eaton rear end has almost no aftermarket for it,The right picture i can't tell with out seeing the whole diff cover it could be a dana 60 not sure.Really any rear end other then that eaton will have a good aftermarket to be built as strong as you want it to be.

12-02-2013, 07:59 AM	#4
ERASER5 Registered User Join Date: Jun 2006 Location: Indiana Posts: 4,859	Re: which rearend is better Little know fact. Almost all of the 14 bolt parts can be swapped into an Eaton HO52. There is a thread on it with the what fits and what needs adapted, and what looks like it won't, but does. Eatons are about as strong as it gets, but the Gov Lock leave something to be desired. __________________ '70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60



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