Bolt on gearbox beam for 740 /940, fits many of GM’s automatic and manual gearboxes, e.g. 4L60, T56-T5 together with LS engine and our engine mounts AS-001020-01

The beam has several attachment holes to the body and to the gearbox mount/rubber bushing and therefore has many opportunities to fit lengthwise.
Strong and slim design.
Depending on which gearbox you choose, you may have to knock and possibly make any withdrawal in the gearbox tunnel.
However, the beam does not fit the large 4L80 transmission.
The attachment on that gearbox ends up too far back and you will have to cut out a lot in the tunnel in order for it to fit at all.

The beam is made to mate with the standard gearbox mount /gearbox rubber example shown in the manual.
Dimensions of the gearbox rubber should be approx. 46mm high and c-c threaded holes approx. 38mm.
Check the height of your gearbox between the center of the output shaft and the underside of the rubber bushing.
It should be approx. 116mm for it to fit well in height with this beam.