['ol Pinion head]

Lloyd has the 140-120mph speedo & seatbelt warning time frame dead on.

Have methodically parted quite a few '72 GrandPrix SJ's, more than a few '72 LeMans, GP's (mostly SJ's), & even a few Luxury LeMans, & yes, '72 GTO's that all had rally guages & the 140 speedo. All had the 140 mph speedo & the single hole brake warning light up through DEC of '71 production. Later cars received the "two hole" 120 mph speedo.

Another distinction to '72, is the regular nose '72 LeMans had the clear parking light lens in early production & amber parking light asms in later production. '72 T41 (rubber nose) cars had a '72 dated clear parking light asm, all year long, with an amber bulb.