83/4 mopar rear gears

House of Darts · 12-02-2011, 12:46 AM

I've always used regular gear oil with limited slip with my spool w/o any problems. Many of the Mustangs that run the NMRA and the 8.8 Ford rear have very good success with Redline Synthetic gear oil. The shock additives are superior. Many of these guys run 4-5spds.

Paul Precht · 12-02-2011, 01:42 AM

How many runs, how fast and what is the weight of the car. The lube has less to do with early failure than, improper setup. If you are using the Richmond street gears or something similar, they never get the proper break in they need and are a little too hard for a fast drag car. Although it would be totally impractical, if you could put a few thousand street miles on a properly setup Richmond street set before it went into the race car, it would last much longer. Most of the fractures that become failures are born on the first few runs.

bdixon · 12-02-2011, 09:48 AM

The car weighs 3245 and gear set is 7 or 8 years old and was due to be changed just wanting to know if synthetics are the way to go or not thanks

John Dinkel · 12-02-2011, 10:16 AM

The oil probably doesn't have anything to do with broken teeth. Proper set up is important. You could try having the ring and pinion Cryogenicly treated. It will help extend the life of the gears. Jim Bailey does this. www.finishedracing.com

ETDragRacer · 12-02-2011, 09:45 AM

What weight gear oil for summer use? Why do you run limited slip additive? Thanks!

Quote:

Originally Posted by House of Darts

I've always used regular gear oil with limited slip with my spool w/o any problems. Many of the Mustangs that run the NMRA and the 8.8 Ford rear have very good success with Redline Synthetic gear oil. The shock additives are superior. Many of these guys run 4-5spds.

12-02-2011, 12:46 AM	#1
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	Re: 83/4 mopar rear gears I've always used regular gear oil with limited slip with my spool w/o any problems. Many of the Mustangs that run the NMRA and the 8.8 Ford rear have very good success with Redline Synthetic gear oil. The shock additives are superior. Many of these guys run 4-5spds.

12-02-2011, 01:42 AM	#2
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 733 Likes: 361 Liked 327 Times in 121 Posts	Re: 83/4 mopar rear gears How many runs, how fast and what is the weight of the car. The lube has less to do with early failure than, improper setup. If you are using the Richmond street gears or something similar, they never get the proper break in they need and are a little too hard for a fast drag car. Although it would be totally impractical, if you could put a few thousand street miles on a properly setup Richmond street set before it went into the race car, it would last much longer. Most of the fractures that become failures are born on the first few runs.

12-02-2011, 09:48 AM	#3
bdixon Member Join Date: Dec 2009 Location: mitchell sd Posts: 289 Likes: 4 Liked 15 Times in 7 Posts	Re: 83/4 mopar rear gears The car weighs 3245 and gear set is 7 or 8 years old and was due to be changed just wanting to know if synthetics are the way to go or not thanks

12-02-2011, 10:16 AM	#4
John Dinkel Senior Member Join Date: Nov 2005 Location: Pinckney, Michigan Posts: 507 Likes: 399 Liked 263 Times in 68 Posts	Re: 83/4 mopar rear gears The oil probably doesn't have anything to do with broken teeth. Proper set up is important. You could try having the ring and pinion Cryogenicly treated. It will help extend the life of the gears. Jim Bailey does this. www.finishedracing.com __________________ John Dinkel 3295 STK