G10 G20 G30 Van LS Trans Mount Adapters

Transmission mount adapters listed for 1977-1995 Chevy G10, G20 and G30 van LS swaps. Each one gives a late GM tailshaft, from the TR-6060 to the 10L90E, a regular mount to rest on.

Listed for 1977-1995 G-series vans
Manual brackets come with hardware
One adapter fits 8L90E and 10L90E

BRP sells its van swap kit with a 4L80E in the name. Mounts, manifolds and fuel parts are on the G10, G20 and G30 van 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

G-van LS transmission mount adapters

Six speed manual brackets

Automatic tailshaft adapters

Adapter lineup

CTS-V T-56 and standard TR-6060 share one powder coated steel bracket.
An MG9 TR-6060 from behind an LSA in the CTS-V needs the MG9 version.
The 6L90E part matches the 2009-2014 CTS-V automatic.
The 8L90E part also fits the 10L90E tailshaft housing.

Van fitment notes

BRP has not posted a G-van install guide, so tunnel and crossmember fit for these gearboxes is not documented.
The automatic adapters are meant for BRP transmission crossmembers. No van crossmember is listed as its own product.
Check floor and tunnel clearance in your van before choosing a six or ten speed.

Notes come from the product listings. Guides for other vehicles are on the BRP install guides page.

G10, G20 and G30 van LS transmission mount adapter FAQ

Is there a G20 van crossmember for a 6L90E or 8L90E?

BRP does not list a stand alone van crossmember. The van swap kit is sold with a 4L80E in its name; open that listing for what it includes.

Which adapter suits a TR-6060 in a G-van?

The CTS-V T-56 / standard TR-6060 bracket, unless the gearbox is the MG9 high-torque version, which has its own.

Is there a G-van LS install guide?

Not yet. The install guides page does not list one for the 1977-1995 G10, G20 or G30.