[W.Cup]

I am going to drain & refill my rearend dope (grease). I have a trac lok, so I guess that is the same as limited slip. What type of grease should I use? I think that this requires full synthetic. Mobil 1 is $7.99 qt. Castrol GL5 80w90 non synthetic is only 2bucks a qt. What should I buy?

Thanks, W.Cup

 

[Big-Al]

Use Mobile One Synthetic, that is what Big-Scott insisted that I use when we put in my 3.73 trac lock.
Spend the extra few bucks, it's worth it. It's not like you'll be changing it often anyway.

 

[W.Cup]

Thanks, I'll put in the good stuff.

 

[GreenBird]

Ask them if they have any "Acapoco Gold"

 

[a Bill]

I used the synthetic Ford supplied me, $20 a quart. Thank goodness they gave it to me as my 9" took two quarts and then the 31 spline Trac Lok blew. In went a Locker with two more quarts.

Mobil One is probably cheaper and better.