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Old 11-09-2010, 02:44 PM   #3
special-K
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Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: what differance are the between a 1972 and 1973 chevy 4x4

Do you have leaf springs in your '68?You can do a conversion,but will need all the crossmembers and everything 4wd related.The front springs are longer,but you will be mounting the spring perches anyway.The easiest thing is a frame swap.If you use the '73 frame the cab and clip will need a 2" body lift because the newer frame rises up that much more under the bed.The front axle will sit a bit forward,as mentioned,and can be dealt with by either relocating perches or redrilling spring center holes.Also,a zero-rate lift can be used to offset.The core support will need to be set back a bit,too.Then the front horns of the frame will need to be trimmed/modified.There is a write up in FAQ,I believe,as well as a lot of talk on this in the 4wd forum.
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Tim

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