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My JRX Pros SE composite craft chassis has two sets of screw hole on the rear end.

Seems like for long or short wheelbase.

Anyone know when to use which setup??

Thanks in advance

Long for trucks?

Jirka

BTW, what should be the wheelbase measurement of the JRX Pro or Pros SE anyways??

Use the shorter set for a buggy, the longer set of holes is for the LXT truck. I think the wheelbase on a JRXpro was like 11.25 or 11.5. The ProSE was slightly shorter due to the swept front arms. You can also space you rear hubs differently to try and increase or decrease wheelbase slightly.

Thanks guys