Hey Darrin,, thanks for the quick reply.. My truck is still in the shop and i'm waiting to find out exactly what the deal is.. So if i wanted to build this thing to manage hauilin a 9,000 pound trailer and have some longevity what would you have to do? what is the ballpark estimate on cost+shipping? also, where are you located?

I bet you have a 4R70W. Not to worry though if you do because I build these transmissions so that they will handle what people want to do with them. Let me know what you find out as to what you have and I would be glad to help you out any way I can.

Hello, I was referred to you by another member, he said you are the guy to ask about tranny issues. I have an 01 f150 supercharged supercrew running 8 lbs o boost, headers, etc.. I figure it has at least 400 hp and maybe 450-500 tq. anyway i smoked my tranny yesterday on the way to work pulling a 5-6000 pound trailer up a hill. I was looking into racer x components but someone said that would screw up my electrical. I want to build the heck out of the tranny because i plan on working it a lot, even occasionally pulling my 9000 pound travel trailer.. what should i do? i have to still check to see if i have the 4r100 or 4r70.. I hope it's the 4r100..