zooguy

iTrader: (1)

the rear in my car is out of a LS1 6-speed car ... i know that the posi is a little different design ... if i change the diff fluid do i need to put in the additive stuff? and what diff lube is safe to use? i like royal purple but this is the first car with posi that i have had.

i know auburn carriers need the additive ... what to look for to know if i have one or not. so i know if i need the additive or not?


pics plz

Bob@BruteSpeed

iTrader: (16)

https://ls1tech.com/forums/gears-axl...r-end-faq.html

See #13. I'd add additive if you're not sure what diff you have. Bob

02 NHRA

If you didnt know, alot of gear oils already have the additive. I use Lucas, which says has the additive, and havnt had any problems.

killagt

iTrader: (3)

I run lucas 80w90 with ford lsd stuff for 6k miles, drain it and fill with valvoline durablend 80w90 with ford lsd stuff 100% better, smooth and quiet, Im recomment it.