Hpi crawler shop king roller

Product Name: Hpi crawler shop king roller
This was purchased from a friend that used it shop as a mud crawler I installed some radio equipment in it and drove around my basement and worked good i don't know if its  was 55 Turn Motor or but everything was a little stiff and slow but I would definitely open up everything due to water and mud got into the bearings but worked good just needs to be gone through it was no broken parts and comes as a roller with motor only please look at all pictures any questions just ask.