57 GMC, frame swap, 4wd, 454 big block, 4 speed

[Purcell69]

Originally Posted by Old57

Thanks! Yes, it has plenty of torque and definitely has no problem at cruising at 70. I'm hoping to get the axle shims changed today to see if that fixes the driveline vibration on the highway.

Here's hoping! I think you are right about the vibration at speed. Getting the pinion/driveline angles right should fix it.

My new radiator arrived yesterday. I'm switching to all aluminum with a built in trans cooler rather than monkey around anymore with the Cummins trans cooler. Also, FedEx delivered some new rear tires today, so at least all four will be the same size now. I just need a nice day off to install some goodies.

I didn't give it any thought, since I'm sitting on a stock suspension, but I probably need to double check mine, since I moved the engine back 3".

-Joe