If you're running a shorty Powerglide or a standard length Powerglide with an engine producing over 500 hp, you need a special carrier. The 4340 alloy output shaft is the way to go. To assure accurate axle locations and parallelism to the output shaft, these carriers have the axle locations CNC machined to eliminate excess wear on the planetary gears. This is a must for serious racers. Carrier may be used with 1.76 or 1.80 gears.

Product Reviews for BM22077 - B&M