Sorry you're having problems but did you compare Jensales parts to the originals? Something is wrong if running it makes your feet numb so quickly.
Here's my parts thread with I originally posted in October of 2012
http://www.onlycubcadets.net/forum/s...ad.php?t=20875
I make driveshafts and solid motor mounts for the cub enthusiasts plus a lot more. I've never had a "numbing" complaint with my parts.
Jeff