[Tellyshavilli]

Originally Posted by RLEngland

It's thick at 3 7/8 in most places. As far as I know, all these wheels with the racetrack pattern on the back are very close to the same thickness. Who knows how many different molds they had. I'll bet the 69/70 wheels without the IC stamp come from the same set of molds as the ones with the IC stamp. For some reason a single mold or a few didn't have the IC. What I can't see happening is the 69/70 molds having the injection hole near the spokes and the 71-73 moving away from the center, then moving back towards the center like this one. That's why I don't think this wheel was cast in 73. There was definitely more than one mold, so maybe the injection holes were in different places. I guess we'd have to compare a lot wheels to figure that out.

Yes, it would be good for research if we could get several guys with original 1969 TAs with Formula steering wheels to send some pictures (must be original formula wheel ) and measurements . I don’t believe any of the 70 Trans Ams came with without any ic stamp on the backside of formula wheel ,at least none out of the several hundred I’ve researched and Documented but maybe one or two slipped through.

[Ramairnacho]

Originally Posted by Tellyshavilli

Yes, it would be good for research if we could get several guys with original 1969 TAs with Formula steering wheels to send some pictures (must be original formula wheel ) and measurements . I don’t believe any of the 70 Trans Ams came with without any ic stamp on the backside of formula wheel ,at least none out of the several hundred I’ve researched and Documented but maybe one or two slipped through.

Can you explain why my original wheel is a non stamped ic but has injection hole in same location? My car ra3 formula assembled in 1st week on March.