All / Parts FI New Power 4L80e direct mount SFI bellhousing $475.00 4130 billet forward clutch hub (rollerized) $99.00 4L80e D3 automatic transbrake valvebody $1,025.00 Truckdoug's HD-Z 4L80e upgrade kit $360.00 3rd & 4th gear accumulator delete $37.00 HD intermediate spring retainer $22.00 HD separator plate $68.00 4L80e pump wear plate $47.00 4L80e case milled for SFI bell $575.00 Sold Out
