John, I'm running on 235/75R15s. The 3:38 gear that's available that someone posted on here is awfully expensive compared to what can be had from LMC...but unfortunately LMC has nothing for my truck's rear end...which I'm confused about. Doesn't my truck have the standard rear end for most Chevy trucks of that era? It's the stock 3:90 gear with the perfectly round 10 bolt cover.
I've come to some conclusions. Based on the info I've received, my options are these...
1. Have the pinion and seal replaced on the existing rear end, and just live with the low gears. The truck does about 55 to 60 miles an hour somewhat comfortably, but can be pushed to go faster.
2. Install a rear end from something else, with some taller gears. From what I understand as of now, the only one that will bolt in is the Dana 44 from a 60 - 62 GMC...(good luck to me for finding one!) Anything else I'm assuming will involve welding/custom fab work.
3. Find and install a T5. I hear they go in easily, but I still have a few unanswered questions. will the bellhousing from the 4 speed work? Will the splines on the T5 line up with those on my driveshaft?
4. Install automatic trans. Not interested in this idea really at all, because driving a stick is much too fun!
