One-piece, 4340 material, 40 spline, for modular rear, 33-1/8" wheel to wheel

4340 material, 40 spline (both ends), solid, lengths vary. (pr)

4340 material, any spline combination, solid, up to 20" long. (pr)

4340 material, any spline combination, 7/8" gun drilled, up to 20" long. (pr)

4340 material, any spline combination, solid, 20" to 30" long. (pr)

300M material, solid, up to 20" long. (pr)

300M material, any spline combination, 7/8" gun drilled, up to 20" long. (pr)

4340 material, any spline combination, 7/8" gun drilled, 20" to 30" long. (pr)

300M material, any spline combination, 7/8" gun drilled, 20" to 30". (pr)

4340 material, any spline combination up to 42". 

Lengths up to 31"

4340 material, any spline combination up to 42". 

Lengths longer than 31".