Originally Posted by RcCzarOfOld

The problem with the original arms on the BJ4 is that they're B4 arms. The BJ is considerably heavier than the 2wd buggy so the same collisions that the B4 can drive away from create considerably more stress on the BJ4, hence the high number of broken front arms. The worlds kit uses the new HD front end and I've seen some of our local racers cartwheel halfway down the track with it and drive away. If you do get the BJ4, definitely get the worlds kit or if you can find an original used for a good price, pick up the worlds conversion kit from www.jconcepts.net As far as parts availablity, Jason and crew are very quick to ship the needed proprietary parts. The only thing I'd order extras of are the front shock towers and maybe a set of front arms. The rear arms are slightly modded B4 rear arms so they're readily available. Make sure you run the plastic ones though. The carbon ones are just too brittle.

Another very good car to consider is the XX4. The thing just cleans up on less than perfect tracks and with the re-release, parts availability is a non-issue.

tony