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Carriers

93-02 Camaro Firebird 3-Series Open Carrier 10-Bolt 7.5 7.625

Code: 93023SOPEN

Price: $50.00

Quantity in Basket: none

93-02 Camaro Firebird 2-Series Open Carrier 10-Bolt 7.5 7.625

Code: 93022SOPEN

Price: $50.00

Quantity in Basket: none

Carriers are what connects the ring and pinion to the axleshafts. The ring gear is mounted to the carrier. As the pinion meshes with the ring gear, the carrier rotates. Gears inside the carrier are splined, which are locked to the axle shafts, allowing the axle shafts to turn. 81 and older cars, as well as 89 and newer are all 28 spline, 82-88 models had 26 splines. Axle splines must match the carrier splines or the axles cannot be slid into the carrier. There are several types of carriers, each operates differently than each other:

Open Carrier : The spider gears inside rotate only 1 rear wheel. The open carrier is common on base models or low engine output vehicles.
Limited Slip Carrier : Often referred to as "Posi-traction". The spider gears are typically meshed with either friction clutches or friction cones. Springs keep force on the clutches when the vehicle is going straight, and as you turn, the spring pressure is lessened, allowing you to rotate 1 rear tire either faster or slower than the other rear tire, preventing binding. Since there are friction discs (clutches), there is a limited amount of slippage.
Torsen : Very similar to a locker rear. The gears inside the carrier climb onto each other, locking both axles together, and unlocking the axles during a turn. When the axles are locked, there is no slippage since there are no friction discs.

There are also different series carriers, and that series depends on the gear ration. Most commonly are 2-series and 3-series. A 2-series carrier requires a 2-series gear, such as a 2.73. A 3-series carrier requires a 3-series gear, such as a 3.23 or 3.42. The reason there are different carrier series is due to the size of the pinion. A 2-series gear has a very large pinion, while a 3-series gear has a very small pinion. If you put a 3-series gear on a 2-series carrier, the pinion will not mesh with the ring gear. Consequently, a 3-series carrier will not allow a 2-series gear to even come close to fitting.

On 93-02 models, standard models had an ABS tone ring installed on the carrier (for wheel speed calculations), ASR/TCS models did not have the gear on the carrier, rather it was on the axleshaft.