Front - 1999-2022 - NQR and NRR - W55/5500 and W55HD/5500XD
NQR (Isuzu) and W55/5500 (Chevrolet/GMC) 1999-2022
NRR (Isuzu) and W55HD/5500XD (Chevrolet/GMC) 2005-2022
- **Spring Types:**
- Left and right springs are different.
- See remarks for general guidance on spring usage. Dates are in Month/Year format.
- **RB-186:** End of spring to rear; RB-186 is a flanged type RB bushing with 2 per eye.