The T5 NEVER was behind the 350. The T5 has a limit of 300 lb-ft when it is the V8 Camaro or V8 Mustang transmission. Here is the TTC page on the T5 http://www.ttcautomotive.com/English/products/T-5.asp#Car

If you want heavier duty 5-speed, the NV3500 would be a better candidate than a T5 and fit without modifications. The NV3500 was found behind 4.6 V6's and 305's. ZF transmissions were behind the 350's in the 1/2T from 88 to mid 90's then the NV4500 was used


The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me