1990 Medium Truck C5H,C6H,C7H Models Service Manual Supplement. 

Contains diagnosis, "On-vehicle" maintenance and light repair for C5H042, C6H042, C7H042, and C7H064 Medium Duty Truck Models equipped with the Caterpillar 3116 Diesel engine.

Condition is used, but very good.

 Printed November 1989. 

Ships free with USPS Media Mail 

Let me know if you have any questions! Thanks!