Originally Posted by DaveSanborn
I believe what he's trying to say is if you're going to go through all of the trouble to convert the car from an automatic to manual, you'd probably be better off going with a 5 spd manual trans for the 5th gear overdrive.
While the toploader will be a welcome change for you and make the car "fun" to drive, the T5 would accomplish the same thing... and give you an overdrive gear for the same amount of money.
Exactly what Dave said.
If going to the trouble to install a manual, go with one that will get you the best of both worlds with performance and low highway RPMs --one with an overdrive.
Obviously, it takes a few more parts and effort to install the overdrive, but it's
the time and effort once it's done.
The Top-Loader is 1:1 in high gear (4th), with a 2.78:1 1st gear in the wide ratio versions and 2.32:1 in 1st in the close ratio versions.
The T-5s from the 5.0L GT Mustangs are .68:1 in 5th, with a 3.35:1 in 1st. The Z-spec Cobra T-5s are .62:1 in 5th, with a 2.95:1 in 1st gear.
The overdrive will allow you to run a low rear end gear ratio for off-the-line performance [just like the Top-Loader], but without the high RPM penalty at highway speeds like you would get from a transmission that is 1:1 in high gear. Cruising RPMs will be significantly lower
with the overdrive.