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11-30-2009, 12:03 AM
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#1 |
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Registered User
Join Date: Nov 2009
Location: Center, MO
Posts: 121
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Picking a rear end for my 1964 GMC
I am two days into my 64 GMC half-ton build project, and have stripped it down to the cab, suspension, and frame. Once the cab is off, I am prepping the frame, and doing suspension/drivetrain. I am converting the front to disc brakes from a 78, and will have 5 lugs. I am looking for suggestions for a donor axle for the rear. I am looking for something that I can preferably bolt on, but am willing to cut/weld spring mounts as necessary. Here are my needs: 2.4 to 2.5 something ratio (was looking at 2.41), would like to match the wheel offsets on the 78 (believe it is a 62" axle, but correct me), don't care about posi or anything like that, will probably stick with drums, and stick with leaf springs. I would like to soften the rear suspension, as this truck will never haul anything, so would be interested in suggestions here, as well. Maybe a car axle/leafs?
Originally posted in the 60-66 general forum; realized I should have posted it here instead. Thanks in advance.
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GMCMG 1964 GMC 1/2 ton LWB project - 1982 GMC 6.2 diesel engine/suspension donor - 1966 Chevy 3/4 ton frame/doors/fenders donor - tons of parts - cause you can't build a truck without 4 of everything! 2001 3/4HD Duramax Diesel extended cab lwb4x4 1984 Chevy C30 6.2 diesel lift truck (project) 1962 GMC w/5 lugs, 350/350 auto (was for parts, but couldn't bring myself to do it!) glascock.m@hotmail.com |
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12-01-2009, 09:09 PM
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#2 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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Re: Picking a rear end for my 1964 GMC
Ttt
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83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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12-01-2009, 09:22 PM
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#3 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Picking a rear end for my 1964 GMC
a stock rear from a 71-72 will be 5 lug and bolt in. a truck with a v8 will most likely have a 3.07 ratio. going into the mid 2.xx on gear ratio will probably be a mistake and lead to horrible mileage and an extremely sluggish truck that isnt any fun to drive.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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