Set of "wedges" to angle the trucks for LDP - long distance pumping.

Made for use with Bennett truck or similar as front - 14 degrees and Tracker RT-s or Crail or similar as rear (5 degrees - providing ease of movement at low speed and up to 10 degrees - increasing return at high speed).

For reverse kingpin trucks "RKP" use the combinations that result in the final angle of the front truck between 50 and 60 degrees and the rear between 25 and 40 degrees.