john17 Posted yesterday at 12:54 PM Share Posted yesterday at 12:54 PM just put a fresh reman transmission in a 1987 rd688. im looking for the wiring diagram for the junction box on the cab. or specifically where this one wire goes to that is zip tied to the cables that run along the back of the block under the floor Quote Link to comment https://www.bigmacktrucks.com/topic/76053-1987-mack-rd688sx/ Share on other sites More sharing options...
fjh Posted 17 hours ago Share Posted 17 hours ago Reverse light switch!? Quote Link to comment https://www.bigmacktrucks.com/topic/76053-1987-mack-rd688sx/#findComment-584462 Share on other sites More sharing options...
mowerman Posted 3 hours ago Share Posted 3 hours ago Good guess I don’t have a clue. Good luck. Quote Link to comment https://www.bigmacktrucks.com/topic/76053-1987-mack-rd688sx/#findComment-584493 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.