Tdean91491
Something about an OBS
The truck sees pavement 99.99% of the time & I live in south Alabama so snow or ice isn’t a factor at all.Depends on what you want the truck to do, and how you want it to behave. For occasional off roading but mostly street driving I'd look into an Eaton TrueTrac. The TrueTrac is a helical gear limited slip carrier that will transfer power between wheels smoothly on the fly as long as both drive wheels have at least some traction. If one wheel loses traction completely (like if it comes off the ground) that wheel will take all the power and spin freely unless you apply some brakes to simulate traction. If that bothers you or you're looking for a more constant 50/50 lock between the drive wheels then I'd go with an Eaton Detroit Locker. The Detroit is not nearly as smooth, you'll feel it engaging and disengaging on the street. Much more durable and better off the pavement, though.
If all you're trying to do is change the gearing there's no reason you can't just re-use the factory G80, though.
When I do the regearing I was planning on replacing the spider gears as well. The only thing I’m unsure about these.
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I’ve ready that you have to have a special tool to replace them & that no one offers them anymore. Any advice you could give me ?