All new gears now are officially junk….MW recommends nothing less then 85-140…specifically TORCO brand…..synthetic not needed…

I’ll keep using what I know works

I don't know why gear manufacturers are saying no synthetic, when it's better in every way than standard oil......

Synthetic for me. Gears have always looked better when oil is changed, less glitter, less wear on the gears, bearings always look great...

quote:

Originally posted by 1320racer:
I’ll keep using what I know works

I used the same thing until here recently….new gears are the problem…

So when did they start selling these "New Gears"?

quote:

Originally posted by Brad Owens:
So when did they start selling these "New Gears"?

Just anything made lately is the problem…I’ve got old gears that’s been run forever…me an several others have bought some and had nothing but problems….US GEARS was the ticket but they been bought out too…

Ive been reading up and have been told by Quick Performance that the Motiv/Motive 8620 gear is proving the most durable. Made in Italy according to the info, and a better forging process.

We will see in the long run. They arrive today.

I plan on using Red Line.

I've been impressed with the Red Line "climbing" lube.
The particular car got a lot more runs on a gear set with it.

My differential guru doesn't like synthetic lube, not because he thinks it's bad, but because his road race units would come back with the paint baked off the housings, no bad gear wear or anything, and it creeps him out.

I just use any GL-5 or GL-6 80 w 90 in my junk.

Lucas 75w-90 synthetic here for forever....

The only time I ever had anything weird was one time I tried the Redline lightweight shockproof oil in my dragster.

Back to the Lucas.