Astro Performance T5 Manual Transmission - Standard Shifting Procedures

Here's an example of a worn or bad tailshaft housing bushing after being pressed out of the case. Astro uses a bushing driver set to remove it.

Cluster bearings on the A-5 cluster shaft are somewhat of a slip-fit design. This eliminates the use of a press, making cluster-bearing replacment easy.

As with a factory World Class T5, you will need a press to install the front cluster shaft bearing race.

Astro uses assembly lube on the mainshaft, cluster gear, input shaft, and needle bearings before installation.

It is important that you soak the synchronizer rings-at least the fabric-lined ones-for 30 minutes prior to installation on mainshaft.

Hoffman begins assembling the upgraded 9310 alloy A-5 output shaft. A magnet is used to hold the mainshaft in an upright position to ease assembly. Hoffman probably could put a trans together with his eyes closed, but we're pretty sure the camera flash got to him this time.

When installing any of the sliders or slider assemblies, make sure you line up the synchronizer ring slots on the gear with the synchronizer key slots of the corresponding hub.

Aside from using a press to install the front cluster shaft bearing race, the only other item that needs to be pressed on with the A-5 gear kit is the input shaft/ Fourth-gear bearing.

All A-5 input shafts feature needle bearing-style pockets, which require the use of 15 needle bearings. Astro uses transmission assembly lube to hold the needles in place so they don't fall into the case when installing them into the front of the main case.