Finding a complete g80 rear would be ideal but it seems this is a rare to none option in the 2wd obs trucks (except 454ss).

If I found a 99-07 axle with a g80 and ratio that I liked, would the guts interchange? Or would it be possible to get 5 hole axles and swap the whole rear end?

Thanks

 

Why don't you just buy a posi for it? Richmond just came out with a very affordable posi unit.

 

Spooooolllllllllll

 

Why can't you use a 4wd axle? My 93 Z-71 had a lsd in it and 3.73 gears.

 

I had thought about the 4wd axles because they typically had better gears and sometimes g80. However they are all 6 lug. Can I just swap axles?

I wasnt aware of the new affordable locker. Thank you for the heads up.

 

I used a 12 bolt axle out of a 73 C10 4wd for my 87 C10 2wd, bought 5 lug axles from strange engineering but you should be able just to swap OEM 5 lugs in

 

Your cheapest option will be a complete rear axle out of a 2WD OBS (88-98) truck. The 4WD rear end will not bolt right up; there will be modifications needed. The problem with the stock G80 posi is that it's not a good unit. Every one I've ever look at in a wrecking yard had problems. It is a very weak setup, and the clutch packs don't last.

As far as whether or not the internals will swap, I'd call a good rear end shop and ask them. It's going to have to be set up (ring & pinion) anyways, so you'll need that done unless you have the skills to do it yourself. Call a shop that you trust to do the work and they'll know what is possible with swaps.

If you're paying to have the rear end setup, saving a few bucks on the posi itself won't save you that much on the total bill. In the long run, it'll cost you extra. Clutch packs burn out, weak carriers break. Consider saving your money and doing it right; get an Eaton Tru Trac. No clutch packs to wear out, very strong. The best posi for a street driven vehicle, hands down. (IMHO)

If you want to save as much money as you can in the short run, keep looking for a 2WD OBS rear end. If you're going to spend a bunch of money modding a rear end, consider spending a bit more and get it done right.

Also, bear in mind that a 14 bolt SF rear end out of a 2WD will also bolt right up. That'll give you a HUGE increase in strength as well. The brakes will be a big improvement too. However, the bigger rear brakes will also require a new brake combination valve or your brakes will be dangerously biased to the rear.

 

I was able to get a brand new auburn LSD, and 4.10's, installed, for 700 bucks through a reputable shop here in town. That's pretty damn cheap if you ask me.

 

Do you have a link to the new Richmond posi unit?

 

Eaton makes really good posi's. Some of the Auburn are cone style-so when worn you have to swap them not just add a new clutch pack.

ANY unit would be better than thew GovLok stock style.