Hello guys , I'm new to the forum ... I recently purchase a 90 Mack Rd690s e6-300hp with 8 speed mack transmission love the truck first Mack ever and wouldn't go back to a Pete ..need some help.. I have wiring issue and fuse panel on passenger side back dont have labels or diagram so have no idea what anything is ? Could not find any other fuse box .. not sure if thats the only one but has nothing but circuit breaker and relays No fuses ?.. also do you guys know of a very good mechanic out here on the west coast?? Thanks for all your help . Also this truck has no leaf spring only solid