Thanks Jim, when I emailed Bill last night about the ring and pinions, I had mentioned swapping the whole Powerglide rear end in, but I didn't know the details as I have never done that swap myself. All the details are in your Tech Tip (under transmissions). DUH!! I should know by now to look in Tech Tips first, many questions are answered there! I always forget. I think 6cylindersovertexas uses the Powerglide rearend in his '37 also. I'm assuming you have to lengthen or shorten the torque tube and driveshaft? And the u-joint should fit right on, doesn't it?