TH400 transmissions 1965 up. Combo Kit comes with the parts we use in our level 3 TH400 Raptor transmission.

$ 1206.00

Free Shirt *

SKU: K400L3. AT 031755HP, 031756HP, 031757HP, OHK 031800HP, SUP 20812, TS BND D34905BK + BLK BND, TCS 223600, SX 34322-01, Categories: , , Tags: ,


#K400L3.  Fits all GM TH400 transmissions 1965 up. This Combo Kit comes with all of the parts we use in our level 3 400 Raptor 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 wider 4L80E black carbon fiber band, an Alto Red Eagle master rebuild kit with red clutches, Kolene steels and all three Power Packs – -forward – – intermediate and direct, plus a free PATC shirt. Plus you get a hardened Billet steel input shaft, drum and forward clutch hub. This combination is good for motors up to 1200 horse power. Buy a torque converter below rated for your power level, vehicle weight / type and with the correct stall speed needed. There’s a 10% discount on this level 3 TH400 Combo Kit plus you get a free T-shirt.

Part Number: 20812                  

Performance torque converters can be bought as low as $196.00 for the #7 converter if you buy this kit.

#8. 600 HP, Cost $446.00 – with performance TH400 only #6X-400. 800 HP, Cost $674.00 – with performance TH400 only #550. 1000 HP, Cost $495.00 – with performance TH400 only #6X-400-S. 1200 HP, Cost $854.00 – with performance TH400 only #13MH. Heavy Truck / Motor Home, Cost $563.00 – with performance TH400 only

Additional information

Weight 40 lbs
Dimensions 20 × 16 × 13 in


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