I've got a set of the roller bearing front and rear. I really like them. Mark.....Were these first sold by Shine Racing Service? The only complaint I have with mine is the "seal" for the fronts. I put them on my project car and before I ever had one mile on it one of the seals broke!!! I called Shine and they said the "seals" were nothing but a bicycle inner tube....
Told me to buy one and make my own!!! That's the only negative thing I can say about them. I would do like Rich said and that is to use marine grease on the fronts......