So everyone (not just the OP) can see it here's what makes 1970 gauges unique:
- housings; the housings are 1970-1972 - they are the same if they are for either rally gauge set; the clock and tach's each use a different rear cover that completes the housing; the housings changed mid 1972 when the seat belt minder was added.
- the speedo's are 1970-1972, just like the housings, the speedo changed when the seat belt minder was added.
- the oil/water gauge changed in either 1973, or for the 1974 model year (I cannot recall, but believe it has been spelled out here elsewhere); the early ones have the middle water temp reading as 210, while the later ones (lets call them 1973-1979) had the middle temperature reading as 220. I seem to recall reading that 1973 gauges had the 210 reading.
- fuel gauges; the fuel gauge is a 1970-only thing, as the originals have a red/orange area in the last quarter tank (near "E") - this coloured zone was removed for 1971; the other fuel gauges are 1971-1974. Then in 1975 the large "FUEL" was replaced with a smaller font "UNLEADED FUEL ONLY" - that gauge is 1975-1979.
- This is the last difference, and it's so small that I personally wouldn't sweat it; tach's - the original 1970 tach's are a one year only unit, which only have a single lead for a points distributor. The 1971-1976 tach looks exactly like the 1970 tach, except a second lead (reads "12v") was added for the electronic distributors. For 1971-1974 you could get an electronic distributor (Pontiac's version of an HEI) which is why the tach was changed.
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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.
1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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