mopar3401987
Well-Known Member
Looking for the best gear oil for my 8 3/4 suregrip what weight should I run? the guys at auto zone tell me 70w but I do not trust them ! Any any particular brands or additives I should add thank you
best gear oil for a 8 3/4 sure grip
- Thread starter mopar3401987
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There correct. Don't sweet the small stuff. GeR oil is heavy. Thicker heavier stuff for more road use and long term on the road use.
I have use Mobil synth. & there own label. No issues, thousands and thousands of miles on each.
I have use Mobil synth. & there own label. No issues, thousands and thousands of miles on each.
69_340_GTS
Well-Known Member
Everyone has their own ideas but I think synthetics are the way to go now. 75/90 Lucas Pure Synthetic Gear Oil sounds good, and it is made for linited slip diffs. I think I'm going to buy some for my next gear swap.
Zippieisit
Member
I read this in Mopar Muscle a few years ago:
I have a '65 Barracuda, Formula S that I bought new. It's about time to change lubricant in the rear axle which has the Sure Grip unit. What Lubricant do I need to use? I recall that it is something unusual. I bought some stuff from the dealer, but when I looked at the bottle, it said not for use in units earlier then '68.
Answer: What works well with your Sure Grip rear axle is Mobil 1 synthetic rear-axle lubricant SAE 75 W90. Add one small bottle of GM limited-slip differential lubricant additive. This works better then oils of the past, whether in hot or cold weather, racing or street driving. I hope this helps ya.
I have a '65 Barracuda, Formula S that I bought new. It's about time to change lubricant in the rear axle which has the Sure Grip unit. What Lubricant do I need to use? I recall that it is something unusual. I bought some stuff from the dealer, but when I looked at the bottle, it said not for use in units earlier then '68.
Answer: What works well with your Sure Grip rear axle is Mobil 1 synthetic rear-axle lubricant SAE 75 W90. Add one small bottle of GM limited-slip differential lubricant additive. This works better then oils of the past, whether in hot or cold weather, racing or street driving. I hope this helps ya.
mopar3401987
Well-Known Member
Thanks for the in put I swap rear ends out a lot I have 2 8 3/4 3rd members one 3.23 and one 3.91 one I use for the street one for the track
Locomotion
Well-Known Member
I use Amsoil Severe Gear in my race car (spool), dually and Dakota. It's compatible with limited slip differentials, but they say to use their additive in case it is needed.
http://www.amsoil.com/shop/by-product/gear-lube/
http://www.amsoil.com/shop/by-product/gear-lube/
EL5DEMON340
Well-Known Member
I think a lot of the manufacturers of rear end components recommend conventional only. That said it probably doesn't make much of a difference. Conventional 85/140 Torco RGO for me with a bottle of ford friction modifier.
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