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Thunder Racing Kit

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Old Aug 16, 2009 | 11:55 PM
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Default Thunder Racing Kit
Wut do u guys think of this kit?? anyone here use it before? im thinking of going with motive 390s for my SS
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Old Aug 17, 2009 | 01:09 PM
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what kit?.
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Old Aug 17, 2009 | 09:54 PM
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Originally Posted by tals7
what kit?.
http://www.thunderracing.com/catalog...&vid=3&pcid=68
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Old Aug 17, 2009 | 10:42 PM
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looks like a good deal just on price alone.
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Old Aug 17, 2009 | 10:43 PM
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Originally Posted by Blue85350
looks like a good deal just on price alone.
yea how is the stock posi units in these cars???
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Old Aug 18, 2009 | 12:19 PM
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anyone ?
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Old Aug 18, 2009 | 10:12 PM
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no one is running this kit ?
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Old Aug 19, 2009 | 09:04 AM
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GM dosen't make a 390 gear but but they do make 4.10 & will be the quietist gear you
can get! & yes the ratech kit is good!
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Old Aug 19, 2009 | 09:59 AM
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Originally Posted by TRANS-DAD
GM dosen't make a 390 gear but but they do make 4.10 & will be the quietist gear you
can get! & yes the ratech kit is good!
yea but i want the motive 390s, are they just as good?
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Old Aug 19, 2009 | 10:59 AM
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WOW thats a great price for all that. Gears, oil, rebuild kit and alum cover with stud kit. The Motive's will be fine, they arent always 100% quiet but my advice is to take it easy on them during break-in. Ratech kits are fantastic.
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Old Aug 19, 2009 | 11:12 AM
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I have motive 3.73's and they have a little bit of noise. The guy I bought the car from tried 3 different sets, never got better or worse. From what I hear most gear sets are that way unless they are stock gm units. You will love the 3.90's fyi!!
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Old Aug 19, 2009 | 11:26 AM
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Motive 4.10s I have installed (blue box) seem to be whisper quiet. My 3.73s (orange box) have slight whine at 50 mph.
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Old Aug 19, 2009 | 05:33 PM
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^The gears are motive orange box 3.73's, not sure if the previous owner ever tried the blue box units...Do they have the blue box version in 3.73? if so ill try swapping them. thats exactly what mine are doing now, slight whine at 45-50.
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Old Aug 19, 2009 | 05:49 PM
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to my knowledge they do have a blue box 3.73
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Old Aug 19, 2009 | 10:06 PM
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Originally Posted by 01ssreda4
WOW thats a great price for all that. Gears, oil, rebuild kit and alum cover with stud kit. The Motive's will be fine, they arent always 100% quiet but my advice is to take it easy on them during break-in. Ratech kits are fantastic.
Originally Posted by kinglt-1
I have motive 3.73's and they have a little bit of noise. The guy I bought the car from tried 3 different sets, never got better or worse. From what I hear most gear sets are that way unless they are stock gm units. You will love the 3.90's fyi!!
thats cool, are all u guys running the stock posi unit in there still?? and how much of a difference did u notice??? i need to wake up my first gear lol
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Old Aug 20, 2009 | 10:16 AM
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with an m6 i forgot to add
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Old Aug 20, 2009 | 12:16 PM
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4.10s in an M6 is the ****. They shoulda came with them factory. No way will you ever go back to 3.42s.
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Old Aug 20, 2009 | 01:44 PM
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I would say go with the 4.10's in a M6 car. I went with 3.90's in my A4, I think you would enjoy the 4.10's alot more in a M6 car.
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Old Aug 20, 2009 | 10:38 PM
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Originally Posted by caddobass
I would say go with the 4.10's in a M6 car. I went with 3.90's in my A4, I think you would enjoy the 4.10's alot more in a M6 car.
yea but is there much of a noticeable difference from 390s to 410s???
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Old Aug 21, 2009 | 01:55 PM
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I bought the thunder racing kit w/3:73 motives, and upgraded to the ratech deluxe install kit. I've put 450 miles on it now, doing the 500 mile break-in, and so far no noise at all. At 500 miles I'm going to change the fluid and give it hell, we'll see how it does from there!
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