Product Description
Update – 10/05/2023 – I have 14 in stock!
This custom cross-shaft is designed by Beyond Redline Performance and is used in our Heavy Duty 4-spider center differential upgrade for the DSM AWD 5-speed transmission.
It is forged 4340 chromoly tool steel that is machined from an ingot by a 5-Axis CNC Mill, then oil-grooved, shot-peened, heat-treated and carbonized. Rockwell hardness is around 60-62. That results in an approximate tensile strength around 115,000-120,000psi. It is essentially classified as a hardened tool steel part.
It is by far the strongest cross-shaft on the market for these vehicle applications and provides owners with complete streetability on high-horsepower AWD applications. Instead of machining down the stock cross-shaft to accept 4 spider gears, this part started from scratch with better material, a beefier structure, surface hardening, and oil passage grooves on its posts to provide proper oiling to the spider gears to prevent surface galling.
The Beyond Redline Performance cross-shaft has been proven to hold over 1000HP and 950TQ at the crank on my race car for the last 8 years without signs of galling or damage. It has been proven on the race track, the street, and the dyno to survive the harshest conditions without failure.
We are no longer doing 4 spider center differential machinework or assembly due to the shop fire loss, and losing all inventory of obsolete parts needed to build them. The cross shaft is the only part available currently.
