I run 904's in both cars, the Cuda weighs 3700 lb, runs mid 11's(10.80 best)1.40 60' same trans since 02, The Dart is 3000 lb. Transbrake best of 9.80's 1.27 60' time, usually lasts whole season, nothin fancy in either, deep pan and manual valve body. Only broke one once(output shaft).