Rear end Gear lube - Page 2

SSDiv6 · 12-15-2020, 05:53 PM

Quote:

Originally Posted by Mark Yacavone

My experience is to break the gears in with conventional stuff first.

I used Dexron in Doug Nash 4+ 1's for years.

Many of the newer OEM stick shift transmissions require ATF. Seen too many people go to a quick lube type of shop and have the ATF replaced with gear lube and then have problems shifting.

Had a neighbor complain at one time that he had the lube on his stick shift car changed and they had damaged his transmission because it was difficult to shift. Had him show me the invoice and they had put 90W140 gear lube. Asked him for his owner's manual and it showed it required ATF. Told him to go back to the shop and have them replace the oil with ATF. He came back and said the problem was gone. Told him he and the shop were Morons; him for not looking at the manual and the shop for not knowing what they were doing, especially with a kid working at minimum wage.

GTOMayhem · 12-16-2020, 06:44 AM

Quote:

Originally Posted by Billy Nees

Laugh if you want to but I've used Dexron for years.

ATF or Gear Lube?

Rick Thomason
GTOMayhem

Billy Nees · 12-16-2020, 08:24 AM

ATF

Dave Gantz · 12-16-2020, 08:28 PM

Quote:

Originally Posted by GTOMayhem

ATF or Gear Lube?
Rick Thomason
GTOMayhem

I'm thinking all Dexron is ATF?

Chuck Gallagher · 12-22-2020, 02:52 PM

I have never found any rear end gear lube that performed "better" when doing the late race hot laps and for wear protection then Mobil1, 75W90 full synthetic.
I use the same in my RWD vehicles.
I used to go through at least one gear set every season; now I still run the same 9" ford Pro Gears that I ran 20 years ago.
Ask the rear end set up guys in NASCAR.

rod · 01-02-2021, 07:07 PM

just remember, for U guys who are running posi/trac-loks or whatever [any thing besides a spool], do NOT use synthetic lubes. same goes for brass syncro transmissions.
Rod in AZ

6130 · 01-02-2021, 08:25 PM

I ran ATF in the rear end of my Mazda...

Greg Jones · 02-21-2021, 05:35 PM

My 12 Bolts have done great running Torco 85-140 with pro gears, backlash clearance makes a difference with the viscosity lubes you use also. Synthetic is more slippery and somewhat thinner than mineral based lubes, tight clearances can benefit from synthetics.

12-16-2020, 08:24 AM	#3
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,504 Likes: 3,606 Liked 7,814 Times in 1,748 Posts	Re: Rear end Gear lube ATF __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K

12-22-2020, 02:52 PM	#5
Chuck Gallagher Junior Member Join Date: Apr 2013 Location: NC (nothing compares) Posts: 48 Likes: 33 Liked 134 Times in 28 Posts	Re: Rear end Gear lube I have never found any rear end gear lube that performed "better" when doing the late race hot laps and for wear protection then Mobil1, 75W90 full synthetic. I use the same in my RWD vehicles. I used to go through at least one gear set every season; now I still run the same 9" ford Pro Gears that I ran 20 years ago. Ask the rear end set up guys in NASCAR.

01-02-2021, 07:07 PM	#6
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 315 Likes: 0 Liked 20 Times in 15 Posts	Re: Rear end Gear lube just remember, for U guys who are running posi/trac-loks or whatever [any thing besides a spool], do NOT use synthetic lubes. same goes for brass syncro transmissions. Rod in AZ

01-02-2021, 08:25 PM	#7
6130 Member Join Date: Jul 2012 Location: Texas Posts: 409 Likes: 295 Liked 117 Times in 50 Posts	Re: Rear end Gear lube I ran ATF in the rear end of my Mazda...

02-21-2021, 05:35 PM	#8
Greg Jones Junior Member Join Date: Feb 2021 Posts: 4 Likes: 0 Liked 1 Time in 1 Post	Re: Rear end Gear lube My 12 Bolts have done great running Torco 85-140 with pro gears, backlash clearance makes a difference with the viscosity lubes you use also. Synthetic is more slippery and somewhat thinner than mineral based lubes, tight clearances can benefit from synthetics.