A must have for all Mugen Seiki MTC2R users!
Straight plate- bulkhead alignment -caster gauge- tweak stick -multi tool #B0558 (for MTC2R only)
We highly recommend the 3 in 1 multi tool for following reasons!

1)Bulkhead alignment
To ensure the bulkheads are lined up perfectly in the car, make sure the bulkheads are moving free on the chassis, then proceed to tighten the straight plate on top, tighten up all bottom screws and remove the straight plate once you finished.
You can do it no matter if you are building a new kit or just in the procedure of re-building. Just make sure the lower bulkheads are ‘loose’ on the chassis when doing so.


2)Caster Values
Very simple to use, before you tighten up your upper bulkheads, just fit the specific gauge to the front or rear (facing towards the centre), push the upper bulkhead gently to the centre of the car and tighten it up!


3)Tweak Stick
You can also use it as a tweak stick which are popular to use to tighten up your topdecks to ensure everything is lined up as perfect as you wish to have.


You can adjust the caster even more than the settings that the tool gives you, if you want to try that. For example, you can run 2 degrees, or 5 degrees (or even more) in the rear, and 3 or 6 degrees in the front - the upper bulkhead movement does allow for this. Keep in mind that wheelbase, bumpsteer/toe gain will be affected.
Of course you can set up your caster with different methods, for example using various gauge systems like avaiable from RC Maker or Arrowmax, or by using a feel gauge (values are in the MTC2R instruction manual)

Source:

R. Volker