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Old 04-24-2011, 06:18 AM
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Full size '85 chassis for AD '54 GMC pickup

I just acquired a full sized 1985 half ton longbed pickup rolling chassis from NC.
The frame is in nearly perfect shape, no rust. I would like to use this for my 1954 GMC AD long bed pickup. If anyone can tell me the pitfalls of this swap and the possibilities of a success, I would appreciate any help.

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Old 04-24-2011, 07:55 AM
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I saw one where a guy used a later model 4x4 frame under his AD....Way too wide.
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Old 04-24-2011, 08:33 AM
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I read here somewhere that the s 10 frames work better as they are narrower like the original.just my 2 cents.
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Old 04-25-2011, 12:28 AM
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I used the complete front suspension saddle from an 83 1/2 ton and bolted it on the frame rails of a 1950 panel van. You need to use plate to space out the frame of the AD truck, not sure if its 1/2 or 5/8 inch on each side. It will bolt in but the wheels will stick out of the fenders a couple inches, not cool if you're going for the lowered look. Hanging the steering box in the right spot was a bit of a chore, I spent hours measuring and welded tabs onto the frame to mount it. The diff was a perfect fit strangely enough. It's a cheap way for ifs on an old truck but not close to the best way.
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