Motive Performance Gears?
#1
Supreme Member
Thread Starter
iTrader: (5)
Join Date: May 2001
Location: Naples, FL
Posts: 1,055
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Firebird
Engine: 383 stroker
Transmission: T-56
Motive Performance Gears?
Anyone use a set of these? And if so, whatcha think? Any noise or whining or anything? If you set them up yourself, how was the install? Is anyone running the 3.90s? Cause that's what I think I'm gonna get.
Tom
Tom
#2
Member
Join Date: Feb 2006
Location: Rock Hill, SC
Posts: 499
Received 0 Likes
on
0 Posts
Car: 91 GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: stock
Re: Motive Performance Gears?
ive got a set of their 3.42's with an eaton posi in mine. no complaints. there is some noise, but its not very noticeable most of the time.
#3
Member
Join Date: Feb 2008
Location: ontario
Posts: 105
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 iroc
Engine: 350 with weiand 144
Transmission: tremec TKO 600,mcleod street twin
Axle/Gears: strange s60
Re: Motive Performance Gears?
i gotta a set of 3:70's, didn't put them in myself, a little noise when new if you really listen hard. went away as soon as they meshed into eachother, i give them a good break in and have been dumping them for a year now with no problems
#4
Supreme Member
Re: Motive Performance Gears?
I wouldnt buy motive anymore after the crap I went through. They use to be made in Italy and have started useing a place in korea and the gears are crap. When summit sent me my gears that were drop shipped from motive I sent them back the next day and bought some richmonds.
#5
Senior Member
iTrader: (8)
Join Date: Aug 2007
Location: Southern Wisconsin
Posts: 1,341
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 Camaro
Engine: 383 Stroker
Transmission: Probuilt 700 R4
Axle/Gears: 3.73
Re: Motive Performance Gears?
when I got my 3.90's from strange they were motive gears from korea or china. They made so much whining noise, I just could not take it and sent them back. I would recommend not buying that gear set
#6
Junior Member
Join Date: Mar 2010
Location: Brisbane, Australia
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 IROC Camaro,
Engine: 305 TPI,
Transmission: R700 WITH STAGE 2 SHIFT KIT
Axle/Gears: 10BOLT 3.73 Richmond Gears
Re: Motive Performance Gears?
Hi
I had a diff shop fit up a set of 3.73 in my 87 Iroc and are very noisey.
Dennis
I had a diff shop fit up a set of 3.73 in my 87 Iroc and are very noisey.
Dennis
#7
Junior Member
Join Date: Jan 2010
Location: Mayer,MN
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 85 camaro
Engine: Built 1969 307 chev
Transmission: w/c t-5
Axle/Gears: 10 bolt 3.73
Re: Motive Performance Gears?
I have a set of Motive Gear 3.73's in mine. No abnormal noises or whining. I installed them myself as far as difficulty its not that hard but you need a pinion depth tool to set your pinion depth properly and a good how too book and take your time shimming it all up properly. One trick i learned is to buy an extra inner pinion bearing and hone it so it slides on your pinion without being a press fit that way you can figure your pinion shims out first and then have a shop press the inner bearing on for you when you have it all figured out.
Trending Topics
#8
Supreme Member
Thread Starter
iTrader: (5)
Join Date: May 2001
Location: Naples, FL
Posts: 1,055
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Firebird
Engine: 383 stroker
Transmission: T-56
Re: Motive Performance Gears?
Thanks for all the input guys. I decided to not go with the Motives. Went with 3.73 Richmonds instead. And as far as the honing out the the pinion head bearing, can anyone chime in on what technique you used to do it. I was wondering what to hone it out with. I was thinking a sandpaper flapwheel maybe?
#9
Junior Member
Join Date: Jan 2010
Location: Mayer,MN
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 85 camaro
Engine: Built 1969 307 chev
Transmission: w/c t-5
Axle/Gears: 10 bolt 3.73
Re: Motive Performance Gears?
Thats exactly what i used and it works great you only need to take a couple thousands off. Now some guys may say why are you doing this extra step why don't you just swap the factory pinion shim press the bearing on and set your carrier backlash and call it good(allot of shops i found out do). Well not all grears are made exactly the same it may be a few thousands different than the "factory GM" gears you are replacing. As with my install i needed to change the shim thickness. Extra wear, Noise, and stress on components can be added.(oh if you are wondering i have the Proform 66516 set up tool). My friend a GM Tech and I use this method and tool.
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Engine/Drivetrain/Suspension Parts for Sale
2
12-11-2023 08:14 AM
hectre13
Engine/Drivetrain/Suspension Parts for Sale
7
08-26-2015 08:17 AM