[grnt37]

I kind of agree,I dont see how leaving off a few things dropped a few hundred pounds.I know some T-37's wouldn't have sound deadener,underhood insulation,trim rings,pontiac name plate on the grille.And as mentioned the bench seat was lighter.Was there any thing else they could have left off to make lighter?

['ol Pinion head]

Trim rings were not avail on GT-37's...

Following are items that are lighter on '71 T-37 vs same year GTO. All add up.

-Hood, Endura hood is longer & heavier. Have 3 or 4 versions of each hood & will be weighing versions of each this Fall, just to provide the exact difference.

- T-37's standard fiberglass reinforced plastic front header panel & chrome front bumper are lighter than endura bumper, & head light buckets. Have shipped quite a few of these pieces out, & will be weighing complete asms, so the exact difference is noted. Interestingly, the core supports when loaded out with hoodlatch asms & front brace are very similiar in weight.

- T-37 bench seat interior. Above AMA spec comparisons mean nothing, as they compare the much heavier fold down arm rest vinyl/comfortweave bench seat avail in LeMans Sports & GTO's with similiar upholstery strato buckets. The T-37 standard bench seat is a LOT lighter in design, esp with paper thin Parody cloth trimmed in vinyl (vs the opt all vinyl construction). Over the last few years, I've hunted down, disassembled, & shipped several of the fold down arm rest variety, all to Buick GS restorers. They're def heavy.

-Carpet & floor insulation was std in LeMans, LeMans Sport, & GTO's.
T-37's did not come with the heavy tar based floor insulation. 2 piece rubber mat is lighter than carpet & floor insulation combined. Agree, just ACC carpet is lighter than 2 piece rubber floor coverings.

-T-37 came with std 7/8" front swaybar or the 1" front bar when Y-96 was opt was clicked off.
'70-72 GTO's came with 1 1/8" front bar, 7/8" rear bar, hardware & "boxed" inserts in rear control arms. At least 15 lbs added.

-Standard seat belt equipped T-37's & GT-37's did not have a seat belt retractor on passenger side of front bench... a few lbs.

-T-37's came with std wiper motor. LeMans, LeMans Sports, & GTO's came with heavier concealed wiper motor.

- T-37's did not come std with alum rocker moldings & hardware or bright scalp molding. It was optional. Rocker mldings were standard on LeMans, LeMans Sport, & GTO. Again, a few lbs.

-Hardly any weight here, but T-37's came without hood insulation. All LeMans & all endura nosed cars, except those with Ram Air aircleaner received the hood pads.