friction modifier
#1
friction modifier
okay guys need some help. I just change the fluid out of my 12 bolt Moser rear end as a auburn posi with 373 gears and 33 spline axles. I just put rial purple 75 90 gear lube. I still have a clunking no eyes only when I turn. Any suggestions if I should add friction modifier to it? Even tho royal purple has modifier in it already? Thanks guys.
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#8
12 Second Club
Join Date: Apr 2013
Location: Bourg La
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This is what I asked Bob with brute Speed and this was his answer below.
Originally Posted by Chevyman1968
I ordered the Moser 12 bolt yesterday from you and I have a few questions. For the u-joint. Do I use the factory u-joint if not what u-joint will I need and how many quarts does the 12 bolt need? I would like to have all this ready upon delivery.
Thanks in advance Ernest Bourgeois
Gear Oil - It takes 3 quarts
The limited slip differential design has been extensively tested with high quality NON-Synthetic 80W90 hypoid oils ( regular mineral based oil ) treated with GM or Ford friction additives ( 3 oz. of additive will treat 1 quart of oil ). To avoid differential clutch chatter ( noise ) and for optimum performance, use the oil and additive described above. Use of other additive and oil types may cause differential clutch chatter.
GM Friction Additive # 1052358
Bob
Originally Posted by Chevyman1968
I ordered the Moser 12 bolt yesterday from you and I have a few questions. For the u-joint. Do I use the factory u-joint if not what u-joint will I need and how many quarts does the 12 bolt need? I would like to have all this ready upon delivery.
Thanks in advance Ernest Bourgeois
Gear Oil - It takes 3 quarts
The limited slip differential design has been extensively tested with high quality NON-Synthetic 80W90 hypoid oils ( regular mineral based oil ) treated with GM or Ford friction additives ( 3 oz. of additive will treat 1 quart of oil ). To avoid differential clutch chatter ( noise ) and for optimum performance, use the oil and additive described above. Use of other additive and oil types may cause differential clutch chatter.
GM Friction Additive # 1052358
Bob
#10
Staging Lane
I have a question that I have not been able to get a clear answer on,
maybe you guys can help. Does Torsen AND Auburn require a source of
friction modifier??? If not, which one does and which one doesn't and
why? Thanks in advance. Sorry to ask within this post.
maybe you guys can help. Does Torsen AND Auburn require a source of
friction modifier??? If not, which one does and which one doesn't and
why? Thanks in advance. Sorry to ask within this post.
#11
TECH Senior Member
Friction modifier is for helping the friction components (clutches or cones) used in positraction style differentials to repeatedly grab/slip without shuddering.
Torsen has no clutch/cone friction components, and so does not require friction modifier.
Torsen has no clutch/cone friction components, and so does not require friction modifier.