Hi!
I have my question....
I have 2. steering wheel
1. Wheel: have gearbox and handbrake but wheel is horrible
2. Wheel: (momo) have greate wheel but no handbreak and gearbox , and i need to use 1. wheel pedals to clutch, how can i make 2 wheel to 1 wheel, without hammer and another stuffs , only with software?

Try just to connect it to PC (all wheels), and in game set needed bindings.
Or is it not working in game (2 wheels?).

Ok, so what your trying to say, you have a crap wheel, with a hand break and gear shifter. But, you want to use them with your momo.

If your able to plug both wheels in the usb, Setup ur momo, for steering ect and your other wheel for handbreak/gears.

Quote from Macist :

Or is it not working in game (2 wheels?).

Two controllers should work fine in LFS. I have a G25 as the main wheel and a joystick as a handbrake. Also when I used to have not so good thrustmasters wheel, I used the joystick as a clutch pedal. My mate uses an old gameport joystick as a clutch, so even combination of different controllers with different ports should be possible. Just connect both to your PC and calibrate and assing them in LFS.