I recently bought a 97 gq patrol wagon with TJM XGS Springs and Shocks, the previous owner didn't know squat about what sizes the springs were so luckily the part number tags were still on the springs, 50mm Heavy Duty Progressive Springs in the rear and 20mm Springs in the front. But here's the thing, the 20mm front springs are actually for a cab chassis! I have absolutely no idea as to why they were fitted and not the correct ones, I am definitely installing the correct springs and shocks but should I be concerned about going off road until I change them over?