#86C. Allison Mega Cooler. 24″ X 13″ X 1 9/16″, built with large tubes for maximum cooler flow. High flow rates up to 20 gallon per minute. 3/4 inch female fittings in cooler. Includes Cooler and brackets only.
Installation instructions for the #86C Allison 1000 transmission cooler. A 2007 back is a straight forward installation and similar to the 2008 up. This installation is on a 2008 up 3/4 ton truck. Picture #1 remove the grill and disconnect the cooler lines. Then remove the factory cooler. #2 cut the grill bracket on the right and left sides. #3 heat bracket as shown. #4 bend to the front one inch. #5 heat the other side. #6 bend the other side out. #7 & #8 test fit the new cooler. The cooler goes off center to your right. #9 install cooler brackets supplied. #10 brackets and adapter fittings installed. #11 place a small piece of filler metal between cut grill bracket then weld the right and left sides. #12 welded grill bracket. #13 install the cooler lines and make sure there are no bolts close to the air conditioning condenser. #14 finished job, install the grill and check your transmission fluid. We installed the cooler and a cast aluminum transmission pan on the same day. The owner reported back to us four days later with a 30 degree drop in operating temperature.