have a stock 81 monte rear end and want to upgrade to a different gear set up.it has a 289 in it now and wont even turn a tire,I have a 95 350 with a 280h cam for now that I'm swapping in.I'm going to install a mini spool but was wondering what size gear to go with?would I have to install a gear spacer to put 3.73 in it?
tire size is 255-65-15
tire size is 255-65-15