Ok all the electrical problems are fixed for now now i need to how or if you can replace the wheel studs on my 90 rx7 or do i have to buy new hubs

 

Hammer them out then press in some new ones. In the rear you need to take the hub off if you want longer studs than stock. In front take the hubs off anyway, no sense in beating up the bearings.

 

do i have to take the hub off for stock ones just a few of mine were sheared off

 

Just to make sure you don't **** it up, I would just go to a brake shop. They should be able to do it for fairly cheap. If you don't put the studs in properly and you've never done it before I wouldn't risk it cause thats basically risking your life.