School me on the 4 speed, please.

res1, You could be right. I'm not to solid of all the models out there and any mods there after tha could or can be done. Thats why I said, theres 6 to chose from, so to speak.

Theres also 5 and 6 speed swaps. But I didn't wanna go there due to the extra expense that could be in the swap.