will be swapping in a 231 soon here, havent cracked open the case yet but theres some rotational play in the front output. not sure if this is normal but i want to just rebuild it anyways. its an 89 with 130k on it, so i feel the need to rebuild. any advice on a rebuild kit with seals and bearings, like where to buy? im hoping to not spend over $100 but wont cry if i have to spend $150, i bought the case for $50 so spending a bunch of money on it is dificult. also how can i tell if i need a new chain?