LB7 LML Allison 1000 conversion & swap ext.

[upstate29353]

Question if I have a LB7 and i have access to a complete 2015 to get all I need to do the complete swap.

My question is what will I have to do to complete the swap at little cost thx. If I use all the wires and the tcm how would I go about hooking the harness up to the other components thx

 

[2004LB7]

That's going to be quite a tast

What year LB7?

Any chance of just fixing the 2015?

There is quite a bit of difference between an LB7 and LML. Injectors being one of them. The LB7'S FICM can't drive them. You'll need to use the LML ECM. Then the transmission. You'll need the 2015 TCM. You might as well transfer all the electronic over in order to make them all happy. Not sure how you'd fit the 2015 cluster and dash parts in an older generation cab.

Your easiest swap is going to be between 03+ LB7 and LBZ. There is just way too much difference on the LML to make it a viable swap without extensive knowledge

 

[Lennydmaxguy]

You're swapping the whole powertrain, or just the transmission? As Jason said, it really not worth it either way. You could swap the valve body from the 15 trans to yours, but it will require a lot a wiring changes internally to make it work. Then you will need a tune to enable 6th gear. Personally, if you want a 6 speed trans, I recommend a valve body for the LBZ/LMM trucks. They're the easiest swap and only require several connector changes on your existing internal wiring.