7.625 Inch Rearend Overhaul - 10-Bolt Basics - Tec

***Ed Blown Vert*** · 07-15-2010, 03:30 AM

7.625 Inch Rearend Overhaul - 10-Bolt Basics - Tech

If you have been around third- and fourth-generation F-bodies for any length of time, you probably already understand that the stock 7.625-inch 10-bolt rearend isn't exactly the strongest unit on the planet.If you have been around third- and fourth-generation F-bodies for any length of time, you probably already understand that the stock 7.625-inch 10-bolt rearend isn't exactly the strongest unit on the planet. In fact, one could argue that the factory 10-bolt is possibly the least capable rearend GM could have used in these high-performance muscle cars. Besides being physically small, the factory rears seem to have an issue keeping teeth on even the stock ring and pinion, a problem that gets worse with every additional ft-lb of torque you throw at it. Replacing the ring and pinion can even make the problem worse, as a steeper gear (numerically higher) means the teeth have to be thinner, further weakening the rearend and making it even easier to break. To add insult to injury, most factory and aftermarket 10-bolts, even in working condition, can exhibit a nasty gear whine, the result of both subpar installations and distortion.

Photo Gallery: 7.625 Inch Rearend Overhaul - GM High-Tech Performance Magazine

Photo Gallery: 7.625 Inch Rearend Overhaul - GM High-Tech Performance Magazine

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07-15-2010, 03:30 AM	#1
*Ed Blown Vert* Blown, Stroked, & Sprayed Join Date: Aug 1999 Location: Sunny San Diego, Ca Posts: 14,718 383 Procharged & N20 Vert Black	7.625 Inch Rearend Overhaul - 10-Bolt Basics - Tec 7.625 Inch Rearend Overhaul - 10-Bolt Basics - Tech If you have been around third- and fourth-generation F-bodies for any length of time, you probably already understand that the stock 7.625-inch 10-bolt rearend isn't exactly the strongest unit on the planet.If you have been around third- and fourth-generation F-bodies for any length of time, you probably already understand that the stock 7.625-inch 10-bolt rearend isn't exactly the strongest unit on the planet. In fact, one could argue that the factory 10-bolt is possibly the least capable rearend GM could have used in these high-performance muscle cars. Besides being physically small, the factory rears seem to have an issue keeping teeth on even the stock ring and pinion, a problem that gets worse with every additional ft-lb of torque you throw at it. Replacing the ring and pinion can even make the problem worse, as a steeper gear (numerically higher) means the teeth have to be thinner, further weakening the rearend and making it even easier to break. To add insult to injury, most factory and aftermarket 10-bolts, even in working condition, can exhibit a nasty gear whine, the result of both subpar installations and distortion. Photo Gallery: 7.625 Inch Rearend Overhaul - GM High-Tech Performance Magazine Photo Gallery: 7.625 Inch Rearend Overhaul - GM High-Tech Performance Magazine 7.625 Inch Rearend Overhaul - 10-Bolt Basics - Tech \| Digg It \| Add to del.icio.us More...