I wish I had that paperwork easy to post, but one of the many pics, literature that was boxed away when I moved 20 years ago and I haven't came across yet. like I said john sawruck gave it to me and it was a list of all the 70 model vehicles and showed their different specs. I cant say for certain, but it seems like the GT-37 was a tenth or two faster than the ra4. (if I remember correctly the ra4 was using a 3:90 gear also.)
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