thanks, saw that. I was thinking that since trutracs allow me the ability to use the stock axles, I'd be better off. Easy and cheap and I recently accumulated a stockpile of spare axles/cv. took advantage of free holiday shipping on the fleabay... those high dollar hds will be plan B. Plan c involves, learning to drive.
plan d involves =



still working on that one

 

Haha! Don't Tru-Tracs only work up until a certain tire size? Might be worth double checking. IDK, something I heard once I think.

 

I thought so, too. My research (webby and emails to various companies that offer lockers) says no issue with 35 and under. Maybe 37+ ... Dunno.

 

Word.

 

Well finally took the time and figured it all out. I'm running 3.90 ring and pinion and I'm also starting to suspect that there's a true trac in the front but I'm not positive. Come spring and once I have some time I'm going to take the axles apart and see what's going on in there

 

Wait what?? What makes you think you have non-stock gearing in your diffs already??
There's an easy way to tell what you have in there, here's what I think it is.
Put the TC in Neutral and jack up the rear end so the tires are off the ground.
For stock gearing the driveshaft should turn 3.54 times for every one revolution of the wheel.
So turn the wheel and count the number of times the driveshaft spins.
Somebody help me out if I'm mistaken on this.

 

What makes me think that is the previous owner put a ton of work into the truck. Lift, tires, bumper and winch, exhaust and other stuff here and there so why stop there? I checked on the gear calculator and I definitely don't have stock gears in there

 

I was just curious, that's all. Gears are usually the last thing people do before lockers. Weird to have just a TruTrac up front and nothing out back.

 

Jack up the back end, and turn the tires. If the both spin equally then there is a locker in there. Truetrac behaves like an open Diff. You could drain the Diff oil and peek in and see the centers with a good light. 3.90 seems like an odd gear.

 

Great Basin offers 3.90 gears, so it's a possibility. By the way, GBR is discontinuing Ashcroft gears so they are having a sale on the 4.11's. Not as tough as GBR gears but still lower gears.