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Car Forum / Driving, Maintenance, Tuning / 4x4 Cars / May 2006Chevy 67-72 frames
Hi, For the frame in the chevys from 67-72, did the 3/4-ton and 1-ton use the same frame? How about for the 4WD trucks? Thanks, Vic > Hi, > [quoted text clipped - 4 lines] > > Vic 1/2 ton and 3/4 ton were the same frames 2wd or 4wd. The 1 ton had a slightly wider top and bottom of C section in rear in some applications. ----------------- The SnoMan www.thesnoman.com So I have what was sold to me as a 1971 Chevrolet K20 3/4 ton pickup Fleetside long bed 4WD I had one hell of a time finding a locker for the rear diff. No one could even figure out what the rear end was. Finally found an old guy who had an old Detroit Locker he put in. I guess there are not many options for the old rear ends. Especially when it is not the right rear end. Apparently an Eaton H052 would be correct for the year or even a H072 if it was a 1-ton, unless it had a Dana. What it had/has is an Eaton H070 for a 1965 1-ton. Would a 1-ton rear end fit a 3/4-ton frame? How can I tell if it is a 1-ton or 3/4-ton frame? Thanks, Vic >So I have what was sold to me as a > [quoted text clipped - 17 lines] > > Thanks, On some 1 ton frames, the top and bottom of frame rails are about 1/4 inch wider. (I have seen this on 73 to 87 model but not sure if it was different on 67 to 72) On the rear axles, GM used the HO52/72 up through 72 in some models with 4x4 Some (mostly GMC) used 12 bolts if they were 1/2 t, D60's if they were 3/4 t and D70's if one T. The Eaton rear axle is easy to ID because it has a removable carrier pig and no removable cover plate. If it has a ring gear thrust pad adjuster on the side of carrier housing, it is a HO72 series axle. At detriot locker is the old option for that tuff old axle (it is well above a D60 in strength) The HO52/72 have the same interals gear and locker wise and I have never been able to see much differencce in them otherwise other than the thrust adjuster mentioned above > Vic ----------------- The SnoMan www.thesnoman.com |
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