obie
Well-Known Member
- Joined
- June 13, 2012
- Messages
- 902
- Reaction score
- 12
- City, State
- Northwest Indiana
- Year, Model & Trim Level
- 2003 Sport Trac 4x4
Advanced Technology is the new name for Professional grade, though not all products have had descriptions and names updated. Service grade is still unchanged and is their "economy" class of parts. Vast majority of Raybestos chassis parts are American made still. Adjustable control arm is for the two piece, and replaces only the ball joint arm, not the arm that it mounts to and the adjustable does not contain the control arm bushings. The following are the Pro Grade (AT) part numbers:
Driver's UCA: 502-1021
Passengers 1 Piece UCA: 502-1022
Driver's LCA: 507-1144
Passenger's LCA: 507-1143
All contain new ball joints and bushings. I'm not sure if the lower ball joints have grease zerks. They don't seem to in the pictures, but I don't know about them in person. I like Moog better, but assuming that the LCA issue (if it actually was an issue and not just a few random flukes) has been solved, Raybestos do make damn good parts that should last for a very long time. There's a reason they do so much OEM work.
Driver's UCA: 502-1021
Passengers 1 Piece UCA: 502-1022
Driver's LCA: 507-1144
Passenger's LCA: 507-1143
All contain new ball joints and bushings. I'm not sure if the lower ball joints have grease zerks. They don't seem to in the pictures, but I don't know about them in person. I like Moog better, but assuming that the LCA issue (if it actually was an issue and not just a few random flukes) has been solved, Raybestos do make damn good parts that should last for a very long time. There's a reason they do so much OEM work.