Originally Posted by big gear head
The springs are all the same. Some people leave 2 springs out if they want it to be a little softer for street use. I don't know of any manual. I shim the clutches in the 9 inch a little looser than I do in a Eaton Posi. If you shim them tight in the 9 inch they will pop and make a lot of noise.
Come to think of it, there was a shim (I guess) as it didn't have either facing material or ears. That little sheetmetal cover was busted in half, would that have been caused by it being shimmed too tight? I'm used to (well, not really) a true locker with the click, pop, and bang when going around corners...