Here it goes. SB 400 dynoed at 460HP - 540lbs torque. /forums/images/graemlins/grin.gif 4.56 locked, 40" boggers. Typically running in mud and or mud drags. Strong chance of 100 shot nitrous in future. I know my 700R4 and 208 will not last. I'm thinking T400 and 205 in the near future. Am I going to notice the taller first gear in the 400 combined with the taller low range in the 205. If so is the aftermarket lower gear set for the T400 a worthwhile investment. With the 700 and 208 what do you expect will break first...the 700 is built with a heavy duty converter, corvette servo and aftermarket plates etc,etc.