I have a 97 mongoose hooligan and it has these weird chain tensioners that broke. They went in a hole in the front of the dropout plate and it(the dropout) has a sqaure cutout ,half way between the front of the DO and the axle slot, that the hole goes through. The tensioner was a threaded rod that went in this hole, and a big nutt went in the square hole and they tightened the rod against the axle. These are the same thing they use on harley-davidsons but there bigger. Does anyone know were i can find them or what they arwe called?
the dropout looks like this. the -- is the hole and  is the square cutout
Please help me, Njrider, firstname.lastname@example.org