1963-1967 Corvette LS Trans Mount Adapters

Transmission mount adapters for LS swapped 1963-1967 Corvettes running a late GM gearbox. Each one turns a CTS-V or Camaro six-speed, or a 6L90E, 8L90E or 10L90E automatic tailshaft, into a traditional mount pad.

TR-6060, MG9 and CTS-V T-56 manuals
6L90E plus 8L90E/10L90E automatics
Steel T-56 bracket comes with hardware

The C2 kit bolts a crossmember bracket to your existing crossmember, per the 1963-1967 Corvette LS install guide. Mounts, headers and the fuel tank are on the 1963-1967 Corvette LS swap page.

$39.99 Cadillac CTS-V T-56 / standard TR-6060 Trans Mount Adapter

$39.99 MG9 high-torque TR-6060 Trans Mount Adapter

$39.95 Cadillac CTS-V 6L90E Transmission Mount Adapter

1963-1967 Corvette transmission mount adapters

C2 Corvette six-speed manual adapters

C2 Corvette automatic adapters

Matching the adapter to your gearbox

Camaro TR-6060 or CTS-V T-56 in a C2: the 3/16 steel bracket, laser cut, CNC bent, jig welded and powder-coated black.
MG9, the high-torque TR-6060 from the LSA powered CTS-V: its own bracket.
The 2009-2014 CTS-V 6L90E automatic: the 6L90E adapter.
8L90E or 10L90E tailshafts share one adapter, made for BRP crossmembers.

1963-1967 Corvette transmission notes

The C2 kit includes a transmission crossmember bracket, two bracket spacers and a polyurethane trans mount.
Some late model C2 crossmembers lack the right mounting tabs and may need swapping for an earlier one, possibly with welding.
BRP headers for this car are listed for the T-56, 4L60E and 4L65E.
The factory clutch Z-bar is not reused, and the driveshaft length changes.

Notes from the 1963-1967 Corvette LS install guide. Adapter facts are from BRP product names and its short product descriptions.

1963-1967 Corvette LS transmission mount FAQ

Does my C2 Corvette crossmember work with the LS kit?

Maybe. The 1963-1967 Corvette guide says some late model crossmembers lack the correct tabs and need replacing with an earlier one, which may take welding.

Which adapter fits a T-56 in a 1963-1967 Corvette?

The Cadillac CTS-V T-56 / standard TR-6060 adapter. The guide lists the T-56 among the gearboxes BRP headers work with in this car.

Will a 6L90E or 8L90E clear a C2 Corvette tunnel?

BRP has not published that. The 1963-1967 Corvette guide does not mention either transmission.

Can I keep the factory clutch linkage in my C2?

No. The guide says the kits will not work with the factory clutch Z-bar.

1963 - 1967 Corvette LS Transmission Mount Adapters