Most reliable ring gear for GM 8.5

FLEMING · 09-02-2015, 01:54 PM

What is the most reliable gear for a GM 8.5 at the moment.. Currently have a 4.56 Richmond but heard they have moved everything across the pond.. No one makes a pro gear for an 8.5 so I guess I need the best street gear going right now..

Dragsinger · 09-02-2015, 04:34 PM

Fleming,

what is your application and performance level?

Run to Rund · 09-02-2015, 05:40 PM

Motive of Italy bought Richmond, whose tooling was worn out--at least that is what I heard. I have had good results with Motive gears from Italy. A good set will have no more than .002" runout around the ring through several revolutions so each pinion tooth eventually hits each ring tooth.

Dave Ribeiro · 09-02-2015, 05:42 PM

Fleming,

What ever you get make sure it is made in the USA !!!! The other stuff won't last 10-15 runs !!! Ask for only USA made , don't waste your Time or Money ??? You can tell by the price if there made in the USA , its always more money.... But well worth it, unless you like changing gears every-week ?? Do it right the first time, its always cheaper in the long-run.
Good Luck & be smart ..... Motive, made in Italy/ Germany is an excellent sub for USA made ....

FLEMING · 09-03-2015, 09:33 AM

There is nothing wrong with the richmond that is in it, just want to have a spare to keep with me..

Car is a 1974 nova stocker without stocker motor.. Just has bracket 355 and glide runs 6.90s 1.45 60'

Dragsinger · 09-03-2015, 10:31 AM

Fleming,

Strange [and I expect others] sells the U S Gear brand. I have installed several of that brand with good results and good service life.

If you want extra insurance you can have the gear set Cryo & REM treated at a cost about equal to the gear set.

Dragsinger · 09-03-2015, 10:33 AM

Also, considering your application and it's performance range the out of the box gear set will most likely give acceptable service.

ron mattson · 09-03-2015, 06:55 PM

Dewco, they have a multi step process that works
250-300 passes no problem mid 11 second
Stocker 3400 lbs

09-02-2015, 01:54 PM	#1
FLEMING Member Join Date: Aug 2003 Posts: 238 Likes: 19 Liked 21 Times in 11 Posts	Most reliable ring gear for GM 8.5 What is the most reliable gear for a GM 8.5 at the moment.. Currently have a 4.56 Richmond but heard they have moved everything across the pond.. No one makes a pro gear for an 8.5 so I guess I need the best street gear going right now..

09-02-2015, 04:34 PM	#2
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,759 Likes: 5 Liked 99 Times in 60 Posts	Re: Most reliable ring gear for GM 8.5 Fleming, what is your application and performance level? __________________ Larry Woodfin 471W

09-02-2015, 05:40 PM	#3
Run to Rund Senior Member Join Date: Sep 2007 Posts: 574 Likes: 6 Liked 44 Times in 22 Posts	Re: Most reliable ring gear for GM 8.5 Motive of Italy bought Richmond, whose tooling was worn out--at least that is what I heard. I have had good results with Motive gears from Italy. A good set will have no more than .002" runout around the ring through several revolutions so each pinion tooth eventually hits each ring tooth.

09-02-2015, 05:42 PM	#4
Dave Ribeiro VIP Member Join Date: Sep 2002 Location: Williamsburg, Va.---USA Posts: 1,827 Likes: 1,612 Liked 56 Times in 27 Posts	Re: Most reliable ring gear for GM 8.5 Fleming, What ever you get make sure it is made in the USA !!!! The other stuff won't last 10-15 runs !!! Ask for only USA made , don't waste your Time or Money ??? You can tell by the price if there made in the USA , its always more money.... But well worth it, unless you like changing gears every-week ?? Do it right the first time, its always cheaper in the long-run. Good Luck & be smart ..... Motive, made in Italy/ Germany is an excellent sub for USA made .... __________________ Dave Ribeiro 1033 STK Last edited by Dave Ribeiro; 09-02-2015 at 05:45 PM.

09-03-2015, 09:33 AM	#5
FLEMING Member Join Date: Aug 2003 Posts: 238 Likes: 19 Liked 21 Times in 11 Posts	Re: Most reliable ring gear for GM 8.5 There is nothing wrong with the richmond that is in it, just want to have a spare to keep with me.. Car is a 1974 nova stocker without stocker motor.. Just has bracket 355 and glide runs 6.90s 1.45 60'

09-03-2015, 10:31 AM	#6
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,759 Likes: 5 Liked 99 Times in 60 Posts	Re: Most reliable ring gear for GM 8.5 Fleming, Strange [and I expect others] sells the U S Gear brand. I have installed several of that brand with good results and good service life. If you want extra insurance you can have the gear set Cryo & REM treated at a cost about equal to the gear set. __________________ Larry Woodfin 471W

09-03-2015, 10:33 AM	#7
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,759 Likes: 5 Liked 99 Times in 60 Posts	Re: Most reliable ring gear for GM 8.5 Also, considering your application and it's performance range the out of the box gear set will most likely give acceptable service. __________________ Larry Woodfin 471W

09-03-2015, 06:55 PM	#8
ron mattson Member Join Date: Nov 2005 Location: cloquet mn Posts: 458 Likes: 15 Liked 54 Times in 26 Posts	Re: Most reliable ring gear for GM 8.5 Dewco, they have a multi step process that works 250-300 passes no problem mid 11 second Stocker 3400 lbs __________________ Ron Mattson 5015 STK