GM Axle Posi Unit Interchageabilty - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mike C · 01-11-2012, 08:58 PM

Eaton was common to GM. I don't think until the more recent aftermarket posi's were Eaton's common in anything else.

I don't know who made Ford's traction lock, and most other manufacturers use Dana axles (I know there are exceptions...just generalizing) which were TracLock or PowerLock, which were both available in GM Dana 60's and possibly 44's in the '67 and earlier trucks or the front of some 4x4's.

Once again, only interchangeability is to like differential housing. 12t to 12t and they need to be the same gear series. 3.07-3.73 and 4.10 and up etc.

01-11-2012, 08:58 PM	#1
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,739	Re: GM Axle Posi Unit Interchageabilty Eaton was common to GM. I don't think until the more recent aftermarket posi's were Eaton's common in anything else. I don't know who made Ford's traction lock, and most other manufacturers use Dana axles (I know there are exceptions...just generalizing) which were TracLock or PowerLock, which were both available in GM Dana 60's and possibly 44's in the '67 and earlier trucks or the front of some 4x4's. Once again, only interchangeability is to like differential housing. 12t to 12t and they need to be the same gear series. 3.07-3.73 and 4.10 and up etc. __________________ 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

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