Yup trans starts acting the @ss as soon as it starts getting close to the 400rwtq range. Did the same thing with the Nissan Titans. The fact that he's AT add's more $$$$ due to the built trans/trans mod and torque converter ( Not necessary but a good idea.) I dunno how much FI charges but Level 10 would about a bit over 2k for the bulletproof kit with torque converter and valve body but then you have Labor to worry about. Their Complete built trans is 4500. and you still have the R and R labor plus shipping on the plus side it's rated for 700whp but can be uprated to 1000whp.
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