Any one tell me about my truck ? Options ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

18436572GMC · 02-11-2014, 01:17 AM

If the rear end looks like that it is either an eaton ho52 or ho72. The only difference is the ho72 has a preload bolt on the opposite side near the driveshaft yoke. They came with 4.11 and lower

**Stocker** · 02-11-2014, 01:38 AM

Quote:

Originally Posted by 18436572GMC

If the rear end looks like that it is either an eaton ho52 or ho72. The only difference is the ho72 has a preload bolt on the opposite side near the driveshaft yoke. They came with 4.11 and lower

Close -- HO72 was one-ton (30-series) trucks only, and always had the preload bolt.
3/4T (20-series) trucks had HO52, some had preload bolts and some did not.

02-11-2014, 01:17 AM	#1
18436572GMC Registered User Join Date: Sep 2013 Location: iredell county, nc Posts: 77	Re: Any one tell me about my truck ? Options ? If the rear end looks like that it is either an eaton ho52 or ho72. The only difference is the ho72 has a preload bolt on the opposite side near the driveshaft yoke. They came with 4.11 and lower __________________ Real trucks have a clutch. Please inform automakers. 1972 GMC, K25, 383 stroker, SM465, NP205, Eaton HO-72



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