G56 swap into 48re

[buzzinghalfdozen24]

I've been curious about ditching my 48re for a g56 six speed manual. I've built it up quite a bit, but still my brain doesn't like it. I've got a mostly stock engine and plan to keep it that way, and even when driving solo I can peak eqt's way too each because it's way under the torque curve and hasn't built boost. Plus, I just love manuals and am trying to keep my truck, vs. getting rid of it. I've done way way way too much work to want to part with it.

So, the swap. Things I haven't found out yet, are... are the holes in the floor plate where the shifter will go? how about the clutch pedal mounting and the master cylinder mounting? I'm thinking all of those should be there and will just need to pop out the sheet metal. Steering column, is this a pain to change over?

But the last thing is the transmission tuning. Obviously my computer is programmed for "auto". If I do the swap, can I simply have a dealer go in and reselect the transmission parameter to manual? Or is there more to this than what seems logical?

The great thing about this project is that "if" it's done, I've got a friend at work with completely identical trucks, we will basically just swap all components, so shouldn't have much junk yard diving to do, hopefully none.

Thanks!

 

[AH64ID]

IIRC Smarty can get you a custom flash to make your ECM a manual one.

What are you running for tuning?

 

[buzzinghalfdozen24]

Right now I've got a Bully Dog GT. Would love custom tuning, but none available. I mean, on my BD I can select manual or auto, when flashing from an "uninstalled" state. But I didn't figure that would actually chance the ecm parameter to run a manual trans, would it?

 

[AH64ID]

Probably not.

Might be a good time to step up to a Smarty.

 

[AEdelheit]

I would Contact Dom , DOM42 on here as he just did that exact swap.

 

[cerberusiam]

You really need a donor truck to get all the little pieces, wiring harness, pedals, mounts, etc. PIA without seeing how all that goes together.

Then the programming if you want it to run right.

When you get done with all that and expense and labor you still have less than what you started with, but, your choice.