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| | | | Joined: Mar 2012 Posts: 37 New Guy | | New Guy Joined: Mar 2012 Posts: 37 | I found a 1990 Chevy Silverado truck,Reg Cab-long box. It has running 350 and good trans. I was wondering how much longer the frame was, and how hard it is to shorten a frame,and what has to be done to shorten it. I want to put my 1949 Chevy 3100 Cab and box on the 1990 Frame so i have a reliable motor, and disc brakes. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | What about the width? Measure outside the tires of each truck before you do anything else....
Grigg | | | | | Joined: Jun 2009 Posts: 1,596 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 1,596 | The track width on a modern half-ton is much wider, and as mentioned already you should measure the widths to see the difference. The wheelbase of the 1990 should be 131.5", while you need 116-117". so you would be cutting a lot out of the frame. This would involve a lot of measurements (and probably a jig to line everything up), as well as welding the cut line and then plating over this seam and welding that as well.
No offense, but if you have to ask how hard it is it might be a bit over your head. It's a lot of fabrication and is critical that it be done by a good fabricator and welder.
In addition, the frame swap requires a lot of fab, and these 3100 cabs are much easier to swap onto a S-10 frame, if you're set on a frame swap.
Last edited by 46gmcpu; 11/05/2012 11:21 AM.
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