Newbie, not sure what to do but here goes. I just purchased a 1999 1500 GW. with a Lehman trike conversion. First problem I found is NO rear brakes, nothing, has fluid in reservoir. Guessing it the master cylinder. How do I figure out What master cylinder was used by Lehman? No idea when or where it was triked or what kit was used at that time. I almost have it out of the trike and thinking maybe just rebuild it but how do I find the necessary parts to do that. Any help would be appreciated, I am much better with the mechanics than this computer stuff. Thanks.