I'm trying to figure out what the differences are with the 2nd gen front suspensions by year. I know they changed a few things over the years but I'm not sure what. The reason I'm asking is that there's a 2nd gen front suspension on the Belvedere and I want to buy new parts for it but I'm not sure what year car it came out of.
Wheel bearings changed over time (78 maybe) so rotors and/or spindles changed, you could check by those. And control arm (lower, I think) changed bushing size in the early years.