4 Speed w/ Overdrive Any Good?

Just wanted to state the obvious, It's really a 3 speed transmission with an OD final ratio. The first gear is real stout, and 2 and 3 are spaced accordingly. It's only 4 gears, not 5. If you have a lot of torque it will work the trans real hard, they have trouble with the countershaft riding on the aluminum case without a bushing and they will wear the case out. The aluminum race boxes had a brass bushing for this reason. If money was NOT an issue, a gear vendor OD with your 4 speed would be SWEET! How about a Lenco street box?