HARD PARTS KIT This is the ultimate diy kit to strengthen your 8HP transmissionPURE HARD PARTS KITs (HPK) are available for all zf transmissions and a variety of transfer cases CLICK HERE TO INQUIRE & ORDER ALL KITS ARE IN STOCK AND READY TO SHIP!! 8HP45 Hard Parts Kit from $3,499.99 8HP50 Hard Parts Kit from $3,499.99 8HP51 Hard Parts Kit from $3,499.99 8HP55 Hard Parts Kit from $3,499.99 8HP60 Hard Parts Kit from $3,499.99 8HP65 Hard Parts Kit from $3,499.99 8HP70 Hard Parts Kit from $3,499.99 8HP75 Hard Parts Kit from $3,499.99 8HP76 Hard Parts Kit from $3,499.99 8HP90 Hard Parts Kit from $3,499.99 8HP95 Hard Parts Kit from $3,499.99 8HP100 Hard Parts Kit from $3,499.99 13-1 Transfer Case - Hard Parts Kit $1,799.99 35L Transfer Case - Hard Parts Kit $1,799.99 45L Transfer Case - Hard Parts Kit $1,799.99 Jeep Trackhawk Transfer Case - Hard Parts Kit $1,799.99 Dodge TRX Transfer Case - Hard Parts Kit $1,799.99