#K400L2. Fits all GM TH400 transmissions 1965 up. This Combo Kit comes with all of the parts we use in our level 2 400 Terminator transmission. You can buy other small parts and a torque converter at the same 10% discount rate. You get a high performance Fairbanks TransAction Shift Kit, a 34 element sprag and drum with over twice the holding power of the stock 16 element sprag, the front intermediate band is replaced with a black carbon fiber band, an Alto master rebuild kit with an intermediate 4 clutch Power Pack, plus a free PATC shirt. This combination is good for motors up to 800 horsepower.There’s a 10% discount on this level 2 TH400 Combo Kit plus you get a free T-shirt.