Over the years many versions of the Getrag were made. They were used on front-wheel drive transverse engine applications including the Chevrolet Cavalier, Pontiac Sunbird, Pontiac Grand Am, Chevrolet Beretta and the Oldsmobile Achieva in addition to the mid engined Fiero. Most of these Getrags were nearly the same as on the Fiero and will bolt right in. During 1990 to 1991 they were also used on Pontiac Grand Prix's and Oldsmobile Cutlass Supreme's w the quad four engine, with a different bellhousing and the same internals.
Note that the Getrag applications are far wider than on the Fiero. As such your hunt for parts can be narrowed down to many cars and just not one. As a side note ,it is rumored that the later Getrags are stronger than the Fiero units
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "