Have you heard of the "4STB" overdrive trans from FB Performance? I was looking to use a 4L80 but then saw this "4STB" online. The prices are similar but I've heard the 4STB is a bit lighter and the "OD" is operated via solenoid. Either one will require a new crossmember, driveshaft, ect.
I'm still looking for some input/info from anybody who has actually used the 4STB. FB Performance claims it can handle 1000 HP but I'd like to hear that from someone other than it's manufacturer!
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