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Unread 06-11-2006   #1 (permalink)
Itsnotfnpurple is offline Apprentice

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Question Where can i find 3.90 gears for my 2003 Mustang GT?

Where can i purchase some 3.90 gears for my 03 mustang gt??? I don't want 3.73 and 4.10 is a little much and i saw somebody with 3.90's on their car and it seemed pretty quick. Anyways apperciate the help!
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Unread 06-11-2006   #2 (permalink)
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You can find them at www.mustangtuning.com, they have them for mustangs from 76 - 06 GT and Cobras. Just go to the drivetrain section and you'll find them. They are made by Motive Performance Plus.
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Unread 06-11-2006   #3 (permalink)
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motive's....i would suggest picking either 373 or 410 ford racing honestly because motive's are notorious for whinning and breaking....and before some ***** says "But mine never did! " i didn't say they ALL do but they are 100x more prone to doing it than ford racing and it's safer just to pay the extra $10 for ford racing

this would be a good read http://www.jpispace.com/mw_faq/gears.htm
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Unread 06-11-2006   #4 (permalink)
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http://www.gefracing.com/Merchant2/m...ry_Code=46REAR

http://www.jegs.com/webapp/wcs/store...tegoryId=11219

edit: just saw the nitrous bottle in your avatar...if it's a 100 shot 3.73's are probably about what you want
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Message me about Nitrous Express kits, please pm or email to n2o_seller@hotmail.com i will beat any buisinesses advertised price
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Unread 06-11-2006   #5 (permalink)
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Motives, I got mine at brenspeed.com, they also have them at Mustangtuning.com (if you get them at Mustangtuning use the coupon MUSTANGBOARDS) save you 6%. Motives do NOT have a rep for whining. That's the people that install them. Gears whine if the installer doesn't do a great job on them. All gears will whine if not installed properly. I have 3.90's, and I love them. I know Carguy on here had a set of motive 3.73's and they gave him trouble and eventually broke - so far so good with mine (crossing my fingers), haha.
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Unread 06-12-2006   #6 (permalink)
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yes, i had motive 373s, i had them for 4 months 4Kmiles. i was driving and the damn gears snapped, 2 teeth off the pinion were stuck in the ring.

They said it was part fauliure, my fords are now really good. if u are want more that 373s get frpp 410s, i know thats probably more than u want but i rather get more than have to pay for gears 2x like i had to.

thats just my 2cents.
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|Cold Air Intake|MAC 70MM Throttle Body|C&L Plenum|MM CC Plates|SCT Xcal2|Steeda Triax|Ford 3.73 Gears|Steeda LCA|FRPP "C" Springs|Kenny Brown Subframe Connectors|MAC O/R H-Pipe|MAC Catback|Strange Engineering 10Way Struts|8K H.I.D. Kit|Spec2|Nitto 555r 315/35/17 |
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Unread 06-12-2006   #7 (permalink)
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I in no way impied that the Motives were good gears, he was looking for 3.90 gears, and that was the only place I knew of that had them. I always go with Ford racing gears. I don't know why he needed the 3.90 gears, but that's his call.
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Comp. springs (lowered about 1.5"), adjustable UC arms, Adjustable LC arms, all from Steeda. CC plates (4 bolt) also from Steeda. Full welded Sub-Frame connectors.

And now a car seat in back... WTF

Mr. Force, can I thrash your car for a day?
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Unread 06-12-2006   #8 (permalink)
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Dang I saw the ford racing 4.10's for $239 on mustangtuning.com... does anyone know where to get them cheaper by any chance?
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Unread 06-12-2006   #9 (permalink)
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Try summitracing.com... i think they are a little cheaper than that! Not sure though.
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Unread 06-12-2006   #10 (permalink)
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Get Ford Racing Gears!
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Unread 06-13-2006   #11 (permalink)
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http://www.gefracing.com/Merchant2/m...ry_Code=46REAR

go there
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Unread 06-13-2006   #12 (permalink)
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Quote:
Originally Posted by ItsaV6iswear!
... because motive's are notorious for whinning and breaking....

FUD alert.


Actually Motive's are notorious for being more difficult to install. Why that is I don't know, but I haven't heard anyone except Carguy who had a problem with properly installed Motive gears. I have heard some people say that their Motive's whined and then broke. Well, duh. Whining = improper install. 'Course I've heard the same about FRPP and Richmond.
ANY gears can break, Motive's, Richmond, and even (gasp) FRPP.
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Unread 06-13-2006   #13 (permalink)
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Question

I recently picked up my 02 gt and am looking at completely rebuilding the rearend, including the axleshafts...anybody have any brand suggestions for kits and where a respectable place to pick them up would be?I dont mind spending the money just want good parts so i dont have to do it again. any help is much appreciated
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Unread 06-13-2006   #14 (permalink)
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Motive and FRPP are the 2 with the best rep from what I've heard. Richmond is still a good gear but for some reason more people pick FRPP and Motive. I would say 3.90 is a bit on the steep side for N2O also, but it's your car. Go with what you feel is right for you and how you drive the car.
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Unread 06-13-2006   #15 (permalink)
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Jim, you decide to go with the C springs ?
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Track Results = 13.53@102.4mph 1.97 60' on 245/45/17 Street Tires
|Cold Air Intake|MAC 70MM Throttle Body|C&L Plenum|MM CC Plates|SCT Xcal2|Steeda Triax|Ford 3.73 Gears|Steeda LCA|FRPP "C" Springs|Kenny Brown Subframe Connectors|MAC O/R H-Pipe|MAC Catback|Strange Engineering 10Way Struts|8K H.I.D. Kit|Spec2|Nitto 555r 315/35/17 |
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