Cable810 wrote:... I kinda think 4.10s might be overkill for 32s unless y'all think otherwise. Mike you mentioned Kyle had an issue with drop lockup? From reading it has something with the TCC and tranny temprature? I do plan on a cooler.
Yeah, Kyle and several others' TBs would drop lockup at higher speeds on any kind of hill. Yeah, it's a transmission heat thing, but the I6 TBs have a very loose converter that makes a ton of heat when it's unlocked. You can get rid of that heat with a cooler, but it still makes that heat, and is still hard on the fluid between the converter and the cooler. If it drops lockup on the highway, at normal highway speeds, with normal (small) rises in terrain (I wouldn't even call them hills), then there isn't enough power at cruising RPM. You can do 2 things to fix that. You can do a bunch of engine mods to get enough power, or you can gear it so that you're up farther into the power that the engine already makes, at cruise speed. IMO, if you're trying to go as cheap as you can, right now, sure, do the 3.73 gov-lock 8.6 and find a 3.73 front diff. If you want to have the best setup for whatever you want to do, and only do it once, go 4.10 or 4.56 now.
IMO, if you're already switching, Kyle did it right. Find an SS setup and swap in the 4.10 front end, get an open carrier for the 9.5" rear end, and put a lunchbox locker in it... Or leave the LSD in the rear for now, and eventually put an open carrier and lunchbox in it.
ETA: Car-Part says that a couple places in norther Indiana have SS rear ends for $440-$550 with 35-60k on them. Search near you.
Mike