MW solid funny car / altered class driveshafts are designed to be used in vehicles with solid mounted rear ends and where a single coupler is not long enough. The driveshafts are machined out of 4340 alloy steel and heat treated to increase strength. Splined the full 6" length. 16 spline, 6" long, 1-3/8" diameter.
Manufacturer: Mark Williams Enterprises, Inc.