2006 Mustang GT-Rear differential repair cost? - Ford Mustang Forum

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post #1 of 7 (permalink) Old 12-19-2010 Thread Starter
Devildog87's Avatar
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2006 Mustang GT-Rear differential repair cost?

How much to repair the rear differential on a 2006 GT? I brought it into a ford dealership due to a significant whirring noise coming from the rear end and I got quoted at $1100 to replace the rear diff bearings, pinion, seals, and races. I was told the main ring gear was fine and didn't need to be replaced. I'm no mechanic, but what I take from this is my actual gears are fine, I just need a new gear install kit...and if so, 1100 seems steep.

Also, I bought the car less than 5 months ago from a non-ford dealership. I bought the car knowing the previous owner had done some work to it. (had 4:10s installed) The dealers warranty expired after 90 days, but is it possible that a problem like this falls under the lemon law?

Mustang is a manual 06 GT with 37000 miles.

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post #2 of 7 (permalink) Old 12-19-2010
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You'd have to research the lemon laws in your state as they vary.
$1100 for that work it pretty steep. I agree. I'd find a local performance shop and have them do the work. I've heard anywhere from $250-$500 for gear swaps depending upon where you live.

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post #3 of 7 (permalink) Old 12-19-2010
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I doubt it falls under any lemon law, but $1100 is definitely too much. Take it to a rearend specialist, gear shop, performance shop with a good rep in your area (look up your local Mustang club for a sponsor or recommendation maybe) and that $1100 will come down, probably by a bunch. Good luck!

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post #4 of 7 (permalink) Old 12-19-2010
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I don't see how it could since the orignal oem part was changed to a more high performance ring n pinion, though it's probably from FRPP. It was messed with so it might not work. +1 on taking to a shop and now it's time to either stick to 4.10's or swap them out. I would buy the gear oil and a master kit and call around. Make sure they've done rear ends before. I've never paid over 200 for a swap but just depends on your area.

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post #5 of 7 (permalink) Old 12-19-2010
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upgrade and go to a private shop

300 for full rebuild+ parts is a general idea of what to look at at a shop.

i did new bearigns seals, gears and diff.
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post #6 of 7 (permalink) Old 12-19-2010
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i dont think it would be a good idea to replace just the pinion and not the ring even if it "looks" ok. should be replaced as a set since they break in together. bearings and seals are pretty cheap( you get most of it in the install kit). that price is way too high.

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post #7 of 7 (permalink) Old 12-20-2010
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You can get a fully assembled replacement axle/ rear end with your choice of gear differential for less than $900 from ford racing.

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