5526-50A – Weld Yokes – 1550 Series – Butt Dia 4.755″ – Tube Dia Wall 5.000X0.125

Part Number

5526-50A

Series

1550

Tube Diameter x Wall

5.000" x 0.125"

Butt Diameter

4.755"

Centerline to Weld

2.750"

Material

Aluminum

Brand

Spicer

The 5526-50A is an aluminum weld yoke in the 1550 series, designed for high-performance or weight-critical applications where the 5.000" tube diameter provides maximum critical speed rating while aluminum construction reduces rotating mass. A 5.000" aluminum tube driveshaft assembly can be 25--35% lighter than a comparable steel assembly -- meaningful for performance vehicles where unsprung weight reduction and improved drivetrain response are priorities.

Aluminum weld yokes require specific welding procedures: use 4043 or 5356 wire depending on the aluminum alloy (typically 6061-T6), clean the oxide layer with a stainless wire brush immediately before welding, and use a higher travel speed than on steel to prevent burn-through of the 0.125" wall. This Spicer weld yoke should be welded only by technicians experienced in aluminum driveshaft fabrication. Post-weld balance specification for aluminum assemblies is typically 0.05 oz-in residual or better, as aluminum's lower density makes it more sensitive to imbalance force at high speed than the equivalent steel assembly.