and Performance Parts and Accessories

Pontiac Firebird Parts - Differential
Classic Industries offers a wide selection of Rear End Components for your Pontiac Firebird. Classic Industries offers Pontiac Firebird Differential.
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Pontiac, Buick, Oldmobile with 8.2" ring gear, non "C" lock axle, 27 tooth pinion spline compatable with 2.93 to 3.23 ratios 28 tooth side gear spline Originally used in 1964-71 model years.
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Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
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-
Max-Gear is an ultra-tough automotive gear oil. It?s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear...
- Add to Cart
- Add to Wishlist
-
The BMR Torque Arm Conversion Kit delivers better spring control and damping because it eliminates the rear leaf springs, replacing them with a custom upper cross-member, adjustable control arms and mounts for coil-over...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
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- Add to Wishlist
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Auburn Gear 8.5"& 8.6" 10-Bolt 2.73/Up 28 Teeth Large Hub High Performance Limited-Slip Differential
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
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Auburn Gear 8.5"& 8.6" 10-Bolt 2.73/Up 30 Teeth Large Hub High Performance Limited-Slip Differential
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
The BMR Torque Arm Conversion Kit delivers better spring control and damping because it eliminates the rear leaf springs, replacing them with a custom upper cross-member, adjustable control arms and mounts for coil-over...
- Add to Cart
- Add to Wishlist
-
Pontiac, Buick, Oldmobile with 8.2" ring gear, non "C" lock axle, 27 tooth pinion spline compatable with 3.36 and up ratios 28 tooth side gear spline Originally used in 1964-71 model years.
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- Add to Wishlist
-
Moser Engineering offers the best aftermarket 12 Bolt on the market. The 12 Bolt housings are newly cast nodular iron housing units that are direct replacements for leaf-spring General Motors OE applications. The extremely...
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- Add to Wishlist
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This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
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12-bolt cone and cup bearing kit. These are the carrier bearings. Two required per car. Application: 1967-72 Camaro with 8-1/2" 12-bolt axle 1967-72 Firebird with 8-1/2" 12-bolt axle 1964-72 Impala/Caprice wit h 8-1/2"...
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Used by Joe Gibbs Racing in every rear end differential and transmission gear box. This fully synthetic, unique SAE 75W-110 gear oil reduces operating temperatures by up to 15 degrees compared to other brand gear oils.
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Special plated bolts to complete the installation of your chrome rear end cover. Fits both 10 or 12 bolt covers. Sold as a set of 12.
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Turn your classic into a true autocross monster when you toss that ancient and inferior live axle for the performance handling and comfort only offered by independent rear suspension. If you really want to go fast and...
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If you?re looking for extreme traction, Classic Industries® has got it all locked up! This new positive-locking differential is a breakthrough in differential technology, delivering the most traction possible while still...
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Powertrax GRIP LS GM 12-Bolt Limited Slip Differential for Carriers with 3.90 and down gears - 30 Sp
The Powertrax Grip LS, is a clutch type differential in a forged steel case. This differential uses a set of carbon clutch discs to provide traction as needed, is rebuild-able and serviceable, and aimed squarely at the street...
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Yukon Dura Grip® Positraction unit is based on the race-proven four-spring clutch-style design that has been used by GM for years. Assembled with heavy-duty 4320 Chrome-Moly spider gears and composite clutches for...
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It is very important that you verify that your cross shaft has been properly hardened, prior to installation. Simply take a file and attempt to scratch a cut or groove near the center of the shaft. If you have a properly...
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Turn your Camaro or Z/28 into a true autocross monster when you toss that ancient and inferior live axle for the performance handling and comfort only offered by independent rear suspension. If you really want to go fast and...
- Add to Cart
- Add to Wishlist
-
Max-Gear is an ultra-tough automotive gear oil. It?s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear...
- Add to Cart
- Add to Wishlist
-
Max-Gear is an ultra-tough automotive gear oil. It?s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
Yukon Dura Grip® Positraction unit is based on the race-proven four-spring clutch-style design that has been used by GM for years. Assembled with heavy-duty 4320 Chrome-Moly spider gears and composite clutches for...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
Auburn Gear's High Performance Series limited-slip differentials outperform standard OEM differentials hands down. They deliver more traction and faster engagement for controlled power transfer and lightning fast reaction to...
- Add to Cart
- Add to Wishlist
-
Differential carrier replacement part for the LR1910 12-bolt PowerTrax Locking Differential. NOTE: Two(2) required per vehicle Applications: 1967-70 Camaro with 12-bolt rearend
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Differential carrier spring kit replacement part for the LR1910 12-bolt PowerTrax Locking Differential. NOTE: One (1) required per vehicle Applications: 1967-70 Camaro with 12-bolt reare nd
- Add to Cart
- Add to Wishlist
-
Moser Engineering offers the best aftermarket 12 Bolt on the market. The 12 Bolt housings are newly cast nodular iron housing units that are direct replacements for leaf-spring General Motors OE applications. The extremely...
- Add to Cart
- Add to Wishlist
-
Turn your classic into a true autocross monster when you toss that ancient and inferior live axle for the performance handling and comfort only offered by independent rear suspension. If you really want to go fast and...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
Moser Engineering offers the best aftermarket 12 Bolt on the market. The 12 Bolt housings are newly cast nodular iron housing units that are direct replacements for leaf-spring General Motors OE applications. The extremely...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
The BMR Torque Arm Conversion Kit delivers better spring control and damping because it eliminates the rear leaf springs, replacing them with a custom upper cross-member, adjustable control arms and mounts for coil-over...
- Add to Cart
- Add to Wishlist
-
This set is for Yukon Dura Grip Positraction part number UR852873. Includes HD bearings/races and shims.
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
Max-Gear is an ultra-tough automotive gear oil. It?s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear...
- Add to Cart
- Add to Wishlist
-
Used by Joe Gibbs Racing in every rear end differential and transmission gear box. This fully synthetic, unique SAE 75W-110 gear oil reduces operating temperatures by up to 15 degrees compared to other brand gear oils.
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. The Detroit True Trac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. During straight-line...
- Add to Cart
- Add to Wishlist
-
The BMR Torque Arm Conversion Kit delivers better spring control and damping because it eliminates the rear leaf springs, replacing them with a custom upper cross-member, adjustable control arms and mounts for coil-over...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
-
This Currie 9 Plus 3rd member is ready to install in your 9" rear end. Traction Lock is the same as Posi-traction or limited-slip. It uses heavy plate-style clutches to help your traction and put power to the ground. 3rd...
- Add to Cart
- Add to Wishlist
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