[JLMounce]

You’ll need to figure out what year it is. The very early models typically will need the internal harness upgraded.

I believe that is the case for 91-93 model transmissions.

A fully implemented trans-go hd2 shift kit that includes the pump mods as well as the complete valve body modifications will typically be able to hold upwards of 700hp. It’s not a parts problem with the stock trans, it’s holding power.

By duel feeding the direct drum you gain needed holding power. When I had my trans built I also opted to have additional frictions installed in place of the wave plate.

If you were doing high power drag racing with decent traction you may want to add a billet input shaft. For most of the cars in the street section though, just the HD2 shift kit is going to create a bulletproof 4l80e.