Hi everyone I posted a few weeks ago asking about a quad shell and rider for a savage, I'm happy to say I got two, one unused (rare) , and one used I bought them both, the used one came with a savage 21, now there lies a problem, I'm hoping you guys could point me in the right direction, the savage will push forward but I can't push it backwards all four wheels lock , I have put all wheels up and turned one and the other one turns forwards and backwards and so on, I have also turned the spur gear by hand that turns ok , would really appreciate your thoughts and ideas what I should be looking at be gentle I'm just getting into these buggy's and getting on in a few years lol thanks in advance