7.3 with a 5r110

[RollinEarly99]

I was wondering if anybody knew if a 4r100 can be replaced with the 5r110?

[RollinEarly99]

Is there a place that sells the adaptor plate?

[Marty]

Yes but it's considered a waste when you can get your 4R100 built to be stronger then the 5R110 for the same price or cheaper.

[Dave]

It would take alot of work to do it. You would need an adapter plate, TCM and a way to make the PCM and TCM communicate. or a standalone trans controller. By the time you do all that it would be alot more cost effective to have BTS or John Wood build your 4r100

[bigcountrysg]

Originally Posted by Maintain

Yes but it's considered a waste when you can get your 4R100 built to be stronger then the 5R110 for the same price or cheaper.

[RollinEarly99]

I've thought of that, but wouldn't your fuel mileage go up considering you got 5 speeds?

[bigcountrysg]

Originally Posted by RollinEarly99

I've thought of that, but wouldn't your fuel mileage go up considering you got 5 speeds?

Still with the expense I could do other things to get better fuel mileage. Like add an external overdrive unit.

[Marty]

Originally Posted by RollinEarly99

I've thought of that, but wouldn't your fuel mileage go up considering you got 5 speeds?

No, the final drive is still the same ratio. .71.

[nc1500]

Originally Posted by RollinEarly99

I was wondering if anybody knew if a 4r100 can be replaced with the 5r110?

For about the same money you could rebuild the 4R yourself and add a mechanical overdrive. This would give you 8 ratios. I'm thinking about this myself.

[bigwhite7.3stroker]

Keep your tranny and get it built