Results 1 to 2 of 2

Thread: Rear Axle Differential Lock Control

  1. #1
    Join Date
    Oct 2008
    Location
    Washington
    Posts
    5

    Default Rear Axle Differential Lock Control

    I have a new just purchased 2007 GMC Topkick, the factory build sheet shows a $375.00 option Rear Axle Differential Lock.
    The book show a switch on the dash but I do not have a switch on the dash, does this mean I really do not have the Rear Axle Differential Lock.

    Or does it stay in the lock mode all the time.

  2. #2
    Join Date
    Sep 2000
    Location
    Tyrone,Georgia - USA
    Posts
    25

    Default

    the C4500 and C5500 share dash boards with its larger C6500-C8500 brothers. The RPO G80 locking rear is of the Eaton type, which is self locking. the dash board switch is mostly to lock or unlock the rear axle of a tandem axle C8500. I don't know of an airlocker for the Dana S150 like in the HD C4500 and C5500, but it would be nice.







    1995 C3500HD 6.5
    1995 C7500 Caterpillar
    1996 C3500HD 6.5

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •