you will have to change the yoke mine did not have a 27 spline yoke you'll need a 700r4,GM TH-350, Powerglide, Super T-10/4L60E/4L60/T-56/M-21, Transmission, 27-Spline. here is a link to one http://www.summitracing.com/parts/STR-U1661/ this one will need a different u-joint to use with the...