Gear oil and sure grip additive

[Sonny]

This oil says recommended for limited slip diffs. Do I still need the 4 oz additive for sure grip?

 

[33 IMP]

Maybe not. Probably not. Using the additive won't hurt. I would ad the Ford additive .

 

[Johnpat]

I'd put it in, won't hurt anything.

 

[Cranky]

Used Mobil 1 that says limited slip friction modifier included but the Power Lock in my Dana 70 is chattering. Haven't done any figure 8's and have about 150 miles on it now but have never done figure 8's with anything else for the last 30+ years and have been fine.

 

[65-440]

Yes, and use the Ford additive !

 

[khryslerkid]

I talked to Cass (Dr Diff) about this once and he stated that it will work for a short period but useing the ford additive will last the longest. Regular diff lube with the ford additive is the best combo. Even other friction additives don't last as long as the ford does.

 

[Jerry Hall]

Used Mobil 1 that says limited slip friction modifier included but the Power Lock in my Dana 70 is chattering. Haven't done any figure 8's and have about 150 miles on it now but have never done figure 8's with anything else for the last 30+ years and have been fine.

I had to ad an extra tube of Mopar limited slip additive to the 68 RR I had and do the figure 8 thing before it quit chattering. I just assumed it was my setup. That did fix it.

 

[Jerry Hall]

The Lucas spec's say it has the additive in it. Got this off the Summit ad.

 

[5.7 hemi]

If you don’t want chattering, put the ferd stuff in it. That’s what use, without exception!

 

[493 Mike]

Man, I miss the sperm whale oil! The whales probably don't miss dying to provide it though.
Mike
PS: I do miss the smell!

 

[dadsbee]

Wish I'd bought and stashed a few cases in '80 or so, but who would have known the real stuff would disappear. Had just enough to fill the Bee's rear end.

 

[wyrmrider]

Type A suffix A