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Old 07-06-2007, 05:37 PM   #1
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Gear Grinding

recently got 3.73 gears installed by motive gears and they started grinding >_< im takin it back monday
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Old 07-06-2007, 07:48 PM   #2
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did they do a full rebuild with new bearings and ***** or just install gears?
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Old 07-06-2007, 08:35 PM   #3
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FUll rebuuilddddd
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94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold

CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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Old 07-06-2007, 09:17 PM   #4
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did you break it in right?
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It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 07-06-2007, 09:17 PM   #5
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Originally Posted by cbrrmike View Post
did you break it in right?
Damn good question. Find this out.

I'm guessing they half assed the backlash or contact pattern.
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Old 07-06-2007, 11:21 PM   #6
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There is NO such thing as breaking in gears.
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94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold

CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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Old 07-06-2007, 11:58 PM   #7
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Quote:
Originally Posted by Camvill View Post
There is NO such thing as breaking in gears.
because you know everything and no one else knows ****
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Old 07-07-2007, 12:32 AM   #8
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There is NO such thing as breaking in gears.
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Old 07-07-2007, 07:59 AM   #9
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Quote:
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There is NO such thing as breaking in gears.
Really?
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Old 07-07-2007, 08:42 AM   #10
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Quote:
Originally Posted by Camvill View Post
There is NO such thing as breaking in gears.
I'm not even going to laugh like the other guys, because I have a feeling the shop told you this.

Read this:
http://www.4x4now.com/gt0999.htm

Note the name at the top. Randy Lyman, or the Randy in Randy's ring and pinion. All gear manufacturers recommend a break in, especially for street use. If your gears are galled or damaged due to improper break in chances are they will NOT be covered under warranty.
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Old 07-07-2007, 09:33 AM   #11
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for street gears there is definately a break in period. Get your facts straight before you insert foot in mouth..
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Old 07-07-2007, 03:47 PM   #12
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they were too tight
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94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold

CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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Old 07-07-2007, 03:48 PM   #13
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for street gears there is definately a break in period. Get your facts straight before you insert foot in mouth..
kid, you bring stuff on yourself sometimes... lol

josh- you broke in your gears a lil too much at atco the other night!
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Old 07-07-2007, 03:51 PM   #14
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makes more people respond when i seem like i kno what im talking about
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93 Civic HB 1.5L-70hp :-p-Sold
94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold

CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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Old 07-08-2007, 08:59 PM   #15
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Quote:
Originally Posted by 98tadriver View Post

josh- you broke in your gears a lil too much at atco the other night!
emphasis on broke... lol! Hey it just means that the motor is making power right?
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Old 07-09-2007, 08:38 PM   #16
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emphasis on broke... lol! Hey it just means that the motor is making power right?
And hey, your tires work
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Old 07-09-2007, 10:37 PM   #17
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Quote:
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emphasis on broke... lol! Hey it just means that the motor is making power right?
Quote:
Originally Posted by WildBillyT View Post
And hey, your tires work
True and true again!
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Old 07-10-2007, 09:50 AM   #18
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josh didnt break them in, he broke them out......

and not having a break in period for gears is the stupidest thing ive ever heard
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It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 07-10-2007, 11:19 AM   #19
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Quote:
Originally Posted by cbrrmike View Post
josh didnt break them in, he broke them out......
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Old 07-10-2007, 10:54 PM   #20
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well turns out the bolt on my pinion was loose haha now i cant even hear my gears
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94 Camaro Z28-CAI with bellow, LCAS, 3.73 gears, A4, 275/40/zr17-silver Zr1's, Magnaflow Stainless steel exhaust. For Sale-This Spring Best 1/4 Time-13.5-Sold

CURRENT RIDE- 99 Z28 with Ground Effects Slp intake Exhaust and Short Throw shifter- best 1/4 -13.34@105.6 New mods yet to be tested->Pacestter long tubes--->Tune by TTP= 349 RWHP 362 Ftlbs
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Old 07-11-2007, 10:38 AM   #21
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might want to change that fluid again if it hasnt been done already.
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Old 07-11-2007, 10:39 AM   #22
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so how many miles did you put on the car with the backlash too tight and the pinion bolt too loose?

and be honest.......how hard did you beat on the car to test the new gears......

your rear is not long for this word depending on the answers to these 2 questions
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It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Old 08-21-2007, 12:14 PM   #23
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how much is a full rebuild?
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Old 08-21-2007, 07:18 PM   #24
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My rebuild service includes tearing down the rear diff, cleaning the housing and all parts to be re-used and inspecting them for damage or excessive wear, then installing all new races, bearings, your new gear set, and setting everything at the proper backlash and pinion depth using new pro grade shims which are a better design than those commonly found in "overhaul kits", this design makes it impossible for shims to walk out of their intended location once they are tightened down.

labor- $300
parts prices may vary

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Old 08-24-2007, 10:48 AM   #25
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Great write up!! that might explain a few things for me. Two years ago I was working at a repair shop and deicded to put a posi unit in my rear ( this is before I researched things lol ) turns out it didnt work, so I put my old diff in and had my friend use a back lash tool cause i didnt know how it worked. about 2 month worth of driving later on it ( cause my car was not runnign for 10 months) i changed my fluid and bearings and seals for the axles, and took off to conneticut. before that I drove around town so it wasent very long trips. By the time I got to conneticut i hada bad humming sound, and drove back home with it. here my passenger side bearing locked up, but why? I went to remove the axles to replace it, and as I turned the diff, i was missing teeth!! here the metal shards from the teeth messed the bearing up. The ring and pinion were set too tight, so I guess he knew just as much asbout it as i did about the tool then lol. so moral of the story is, dont let friends do the work thats for professionals.
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