mfu & transmission question

[jack van]

So i have 1 mfu 01 and 2 trucks hehe (not the problem). One truck has the all metal 3 speed tranny upgrade from stock and has locking diff in rear the second truck has had locktight on all screws and has the automatic transmission but no locking diffs yet

1ST problem which truck to put mfu in the 3 speed or the auto ?

2nd problem is mfu can ot make up it's mind what it wants to do sometimes
wheels turn when radio used then next day no luck

3rd do i need to used y harness for steering servo and receiver to mfu
:

4th haveing hard time getting differentials to work better on servo

[Izzy]

The mfu has sounds related to shifting. You would love that by putting in the automatic.

Metal trans no issue

Steering and shift plug into the mfu. Mfu plugs into receiver.

Note mfu is limitations on amperage draw and it does not like lipos. Too many servos will pull too much power and you will loose signal and mfu with shut down.

To speak of the original semi mfu not the newer euro style. The euro has a clutch and I believe cruise control built in