Has anybody installed the auburn gear posi-traction unit model number 542072?

http://www.justdifferentials.com/ind...roducts_id=458

I'm just wondering if anyone knows whether its worth it and how easy it is to install.

 

I put in a daina spicer posi. w/ 3.90 works good.

 

Have installed this very unit in my '95. However, it was done in a shop because of the difficulty in setting up a differential properly. Now has about 2500 miles on it with no problems whatsoever. However, Auburn recommends NOT to use synthetic fluid because it will to some degree nullify the friction modifier and make the differential "clunk" in certain situations.