I have to have the gears and the bearings replaced in my rearend this week(second time I have had to fix it) and was given two quotes by a guy I know that owns a shop. He'll get a used one with the same gear ratio and inspect it and install it for $685, or I can have him rebuild my current one for $930. Do you guys think that these prices are fair and which is the better option?
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1997 6-spd WS6 Trans Am -
Well, when I had my 2.73's replaced in my 96 Z28 I paid $347 for the install. I also got new Strange Series 2 3.42's ($225), and a Ratech Deluxe Install Kit (rebuild kit $130) and synthetic oil ($15). There was an online ordering discount of $20 at thunderracing.com. So all told, it was a little over $700. I think the shop charged 5 hours labor at $65/hour.
If you look around, you might find a better price.Joe K.
'11 BMW 328i
'10 Matrix S AWD
Previously: '89 Plymouth Sundance Turbo, '98 Camaro V6, '96 Camaro Z28, '99 Camaro Z28, '04 Grand Prix GTP -
Actually, now that I think about it, GM Motive gears are usually a little less expensive and shops add a little to their price for profit. I'd ask him to break out the labor and parts prices for a better comparison.Joe K.
'11 BMW 328i
'10 Matrix S AWD
Previously: '89 Plymouth Sundance Turbo, '98 Camaro V6, '96 Camaro Z28, '99 Camaro Z28, '04 Grand Prix GTPComment
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As far as swapping in a used rear, you should be able to get one for $200-300 and you can install it yourself in 2 hours, with minimal tools. I have an online procedure for a rear axle assembly swap if you are interested.
Thunder sells the Motive gears for $190. It would be a good opportunity to change the rear axle ratio for some added street performance
Both your quotes sound a bit "pricey".Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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Seems to me I paid $250 labor to have it done with the supplied gears, bearings, basically everything excepting the physical posi unit itself which was untouched. All the axle bearings, seals, etc. were done as well as the new ring and pinion set up for that labor charger. The guy even had to slice a shim to get just the right backlash. That was a couple years ago, that might equate to $300 now. You now could probably do some parts searching and see what you come up with.
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I think $930 is too much to dump into a spindly 7-1/2" rear end. Especially for a second repair. What if it breaks again?Comment
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