OPH will be by shortly. You may want to put down the questions you want answers to ahead of time.
The GT-37's were only built from 70 1/2 through 71. There were 3 stripe packages. 70 1/2 looked like a 69 Judge stripe. 71 looked like 70-72 Judge stripes and 71 1/2 were the sword stripe that was also used in on the 72 LeMans GT and on some 73's with the GT package.
For 1970 and 1971 the package consisted of 350 engine, dual exhaust with GTO type tips through the cutouts in the real valance panel, 3 speed hd trans.w/Hurst shifter, stripes, hood pins, Rally II wheels w/o trim ring and G70 X 14 tires, driver side body color mirror, GT-37 emblems.
In 1970 it was available on both the 2 dr sedan and 2 dr hardtop. In 1971 it was only available on the 2 dr hardtop.
In 1970 the engine choice was up through the 350/400 and in 1971 it was up through the 455HO. 4 speeds and auto's were also optional.
OPH has the numbers on how many and what engines, or at least a better number than I do.
In 1972 the T-37 went away and the Luxury LeMans was added. The LeMans became the basic A body car as the Tempest then the T-37 were in the past. The GT option in 72 was similar but do not believe the hood pins were part of it. Just don't remember that part but the remainder of the GT package was retained. The GT option remained for about 2 more years when the bumper car era came into being in 1973.
If you do a search for T-37 and or GT-37, at this website at the top of the page you should be able to get more information. Then again maybe not. Tried it and it did not work.
JLP