You could have saved yourself $117.00 if you would have skipped the transmission crossmember and rear transmission mount as they are not needed for your application. In fact, you may want to consider removing the transmission mount from the transmission and let the transmission be supported by only the front mount and the bellhousing mounts.
Why? Supporting the engine/transmission at 3 points can cause serious problems. It has been described to me that it is like holding a stick at the ends with each hand and putting your knee in the middle. The stick is easily broken.
If you are concerned about the T5 transmission hanging out unsupported behind the bellhousing, worry not, as these trucks which came with SM420 4 speed transmissions hung out unsupported behind the bellhousing. That transmission will give you a hernia to lift it up off the ground.
If you have a Crossmember supporting the Bell housing, then I would recommend removing the Crossmember supporting the T5.
There have been many debates online about whether a crossmember is needed. Yet, I’ve never once seen anyone show evidence of failure because of USING or NOT USING a T5 crossmember if they had a crossmember supporting the bell.
I personally have 2 short bed C10s with a T5 and neither have a support for the T5. It hangs off the bell because the bell has a crossmember.
In the Camaro and S10 applications there was a crossmember beneath the T5 but none supporting the bell.
