OEM Westmoreland hatchback bumpers were lighter aluminum (front and rear) without signal lights from 81-on. Steel are either older or aftermarket. Bumper brackets changed from gas-pressurized to slightly lighter disposable steel in the middle of the run. Both 60mm and 80mm CIS units came on those cars, IIRC. I think the toasters were all CIS-lambda, but the pick-up was CIS-basic. There were at least 5 different 4-speeds and at least 4 different 5-speeds, and two of the 5-speeds shared the same code but had different ratios generally corresponding to a particular transaxle build date (which was usually significantly older than chassis build date). Be careful within a week or so of that build date, though, as some boxes got through with mismatched 4th versus 5th gears - a generally undesirable combination in addition to being undocumented. If in doubt, I think ETKA is spot on for everything else.