[capev86]

why bother if it has the independent suspension on the front and trailing arms out back?.....just add the biggest sway bars you can get, good shocks and poly bushings on all joints. i'd only swap sub assemblies and axles if anything.....easier than trying to adapt the frame. the older generations are smaller and the frame rails are closer together. my 72 burb is getting CPP sway bars (front bar has been on for awhile now and i love it) and poly bushings on the trailing arms and track bar. it could use a fresh, modern set of shocks but rides real good for a 37 year old 3/4 ton truck. yeah....new trucks are plush....but they don't really get better gas mileage because of all the sound deadeners, impact bars and other stuff people expect now. i like a relatively smooth, quiet ride. but if i need a truly car-like riding experience....i hop in my car.

a 47-59 burb would be a good choice for an upgrade. but i'd just keep it somewhat vintage by using 60's/70's/80's GM 2wd front end and narrowing the crossmember that everything bolts to. or you could swap it as is and use the rear axle too.....push the wheels out for better handling and more aggressive looks.