Hardtopguy or Rick"s.

 

According to the gear calculator at Turn Zero if you were to change out the tranny on an Ap1 for an ap2 and put in 4.77 gears you would have a top speed of 146 mph.

Just changing the gears to 4.77 in an Ap1 would have a top speed of 143 mph.

The final drive transfer ratio of an Ap1 is 1.16 vs. 1.206 on an Ap2.

So, while the AP2 does have a longer actual 5th and 6th gear, when the transfer ratio is included, you actually have very little rpm difference between the two when cruising in 5th or 6th. :

That would be a huge expense for an extra 3 mph up top.

In addition first gear would be like putting in 4.96 gears, which would be way too low for street applications. I have 4.77's and I need a stickier/wider tire to actually use this from a standing start. So, more gear down low would not be good.

Not trying to bash anyone here, just did the preliminary math and don't see this switch being a good fit.

 

My response was to this.




Its all a good point and true, but the ap2 tranny is nice upgrade that a lot of people have done

PS I want 4.77 gears too