Idle Ender
Well-Known Member
So, I finally had it all put back together and had it tuned just right and I have reason to believe I spun a bearing. Literally like 2 weeks later. Im sure the 3 speed non-overdrive and the 373 gears had the thing very high strung on the highway, which didnt help. It suddenly started knocking BAD while driving home on the highway. Hobbled it home with zero issues or loss of power, just really awful sounding. Since then Ive yanked the engine/trans out and have it sitting in my garage for a full inspection/rebuild. Taking this as an opportunity for a forced upgrade. New intake and exhaust manifolds, machine work, pistons, forged rods, small turbo for 10psi, and replace every wear item and gasket. Also researching ways to convert to an overdrive trans while I have it all out. I know there is a transmission thats almost identical to a 904 but with overdrive, I just dont recall the name of it. Any thoughts or experience with building up and boosting a slant?