Hello I have a weird question. I want a .60 overdrive ( give or take some) and I have access to a few straight tens but that's all I know about them. Could flipping gears in get me were I need to be? I have put bearing kits and press shafts apart in some farm dumps so I feel confident doing the work I just don't want to tear down Trans just to find out I started with the wrong one. My project is a 87 k30 Chevrolet (square body ) with a mechanically injected duramax I have a sae 3 bell adapter although I know I need to go to sae2 also have a 14"clutch plate and flywheel for it with a 1-3/4" 10 spline input only problem now would be starter . I am running 33" tires with 4.56 gears. I want to stay 4.56 for getting loaded gooseneck moving but I also need to be able to run 80mph on interstates (unloaded) plus how cool would a ten speed be in a pickup
my main question is what Trans should I start with 1st 2nd 3rd options as I'm on a major budget that's already gone
