['ol Pinion head]

1969, 1970, 1971, & early '72 GTO's & other Pontiac A-bodies used the same cluster except for '69 had 120 Speedo.

'72 Pontiac A-bodies assembled after Dec 31, 1971 reverted back to 120 speedo, but cluster had brake warning & fasten seat belt windows.

GrandPrixs...For the same years, GP's had same cluster except for the font or style of the lettering is thinner on the speedo for the GP's. 90% of Rally guages listed on good ol' e-Bay as GTO, & listed with a picture are actually GrandPrix units.

If you want an early "72" Rally guage set-up you should have no problem. Later '72 set-ups are harder to find, but are out there. On indash 69-72 GTO tachs, I'm a firm believer in sending originals out to be restored or in buying the repro indash unit.

Appearance of the guages themselves, lenses being scratched or not, printed circut being nice, & funtionality of guages, all effect pricing.