I've been talking to a few companies around asking them if they could produce some high speed balanced driveshafts, but can't seem to get any of them to do one.

I've done several 500hp+ project trucks that are daily drivers, and half of them have snapped their driveshafts over 200kph/120mph. I remember seeing Caspers truck run 10s in the 1/4 mile with a trap of aroun 130mphs and he did have a custom driveshaft on, but not too sure where he got it from..

If any body could help I'd be greatly thankful, it would offer us alot more safety instead of praying the truck doesn't flip over head over heels!

 

Denny's driveshafts should be able to help you out. all you need is a full measurement of your stock driveshaft, then tell them make you one that's 2 peice. take it to a shop to have a crossmember installed to allow you to hang the carrier bearing. it's pretty simple.

 

driveshaft specialists are going to do a roughly 72" long 5" dia alum one for me will turn 6400 rpm, locked 3rd gear

 

You shouldn't need a 2 piece on a rcsb. I think it depends on gearing as much as the material. I have been shopping one for mine as well, although with the 3.23's I have had mine 135 on a handful of occasions.

 

yeah im stupid for not reading! i wouldnt run an aluminum driveshaft....id look into a steel one made for your truck.

 

I swear by Denny's Driveshafts. I had them balance mine to 140 for my truck. I have also had the one in my car at 155 MPH, and will be going a lot faster without having any worry. Go on their site, and see the proper way to measure before ordering. I use their nitrous ready shafts with 1350 joints.