Robert, This is a personal opinion, based on personal experience. Randy's is the worst in my book. I would never purchase from them. I did a couple of times, and each experience was painful. I would suggest finding a good driveshaft/rear end/old school garage in town, and have them look at it. Perhaps they can see something wrong, perhaps not. I have had a couple that I could never get all the noise out of. Earl Hi all, I purchased a complete clutch posi, 3.55 8 3/4 unit from Randys Ring and pinion. Very unhappy with the product and they dont seem to care. The ring gear is very noisy from 1800 rpm up. I pulled the unit back out and it looks good. Rears and gears are not my specialty. oil 80-90 wgt posi additive Any ideas??? Robert 63 spt fury conv 63 spt fury http -- [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.