My toploader is 28 spline, not sure what 57 is, but a 28 spline toploader yoke will fit the 57 shaft, just the back end thats in question.  I'll check Summit, Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin

 

Summit Racing also has them. Recently got one that fits my stock '57 Bird driveshaft and the large input toploader output shaft. They also have one that fits the small input 4 speed. Come to think of it, a '57 drive shaft fron yolk should fit the toploader unless it is the large output shaft toploader.

NEAPCO is the company that makes conversion joints,visit the website for local dealers when I put a 302 & AOD in my '54 I used an '86 Crown Vic driveshaft and a NEAPCO rear joint to hook it up to the '54 rear.

I'm zeroing in on my driveshaft for my toploader installation in my 55 Vickey. I've seen some reference in here to conversion joints. Is there a conversion joint so I can use a 57 driveshaft to mate up to my 55 rearend without cutting up the shaft. I've got a 28 spline yoke for the front just need to figure out the rear. Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin