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Originally Posted by 69 C10 LWB
Im currently on the hunt for a new truck and so far I havent had much luck finding what I want. When I was in school I had a 64 C20 and that was my favorite truck ever. I have been looking at C20s and C30s and all the ones I have looked at have been solid gold and out of my price range or so far gone Im amazed the duct tape is still able to hold the cab on.
I currently have a 1973 GMC 2500 with a good drivetrain. My plan was to strip this truck down so I would have disc brakes and possibly a V8.
Here is my question. I have a line on a 64 C10 shortbed that has been sitting. What is the difference between C10 and C20 frames? Is there any reason I cant take my front suspension and drivetrain and convert to 3/4 ton? I know most people go the other way but I like to be able to use my trucks as a truck if needed. I know I will have to change the perches on the axle but that would be easy. Anything other than stiffer springs and different axle out back?
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I did this on a 66 and it was a great truck that served me very well for over 30 years. I would still be driving it but the rust monster finally ate it. I liked the size of the shortbed but could easily and safely carry a cord of wood or a yard of gravel.
The 3/4 ton front brakes and suspension are a bolt on and work very well. As you said, the rear is just moving the spring perches. You will have to redo the drive shaft, but any good driveshaft shop can do that. Also will want an adjustable brake proportioning valve.Finally you should box in your rear trailing arms, as they can crack under heavy load.
You will have a very useful and unique truck when done.
Good luck, Tom