I have the MORE rubber motor mounts, Daystar polys in the rear leaves, tranny, and front upper axle mounts, Ironman4x4fab's CAs w/ poly bushings, and Addco sways with their poly bushings. I didn't mind the vibes and harshness until I added the Daystar poly trans mount. It will be coming out and be replaced with a new stock rubber mount. Don't forget that the exhaust also gets supported by the tranny mount, so that'll add vibes too(esp. in a stroker with a lopey cam and bassy exhaust).