1980 Jeep 4-Wheel Drive Systems Product Information Series Brochure for Jeep CJ-5 and CJ-7, Cherokee, Wagoneer and Truck J-10 and J-20. Printed on the back cover of the brochure is "8/79, Form #0-5424-851-04B (code 21 B)." Inside the front and back covers are 6 pages of information about 1980 Jeep 4-Wheel Drive Systems. The brochure measures 8-1/2"W and 11"L. This is an original brochure stored in a box in a garage since 1980. The brochure has never been used and is in very good condition considering its age with no visible damage, wear or odors due to long term storage.