How to Use a Transmission Cooler With a Factory Transmission Cooler on a Vehicle

Question:

How do I use the factory transmission cooling system with an auxiliary transmission and connect to the transmission steel lines ?

asked by: Jim

Expert Reply:

What you will want to do is unbolt the return line of your factory transmission cooler and (if available) install a snap in fitting there so that you can then route the fluid from the factory cooler to the auxiliary cooler and then from the aux cooler back to the return line of the transmission.

For some vehicles the lines are all rubber so you can just slip them off of the fittings they are on so that you can route the lines.

Basically you will want to route the fluid through the factory cooler, then to the auxiliary cooler, and then finally back to the transmission. Without knowing what vehicle you have it is hard to say if there is a snap in fitting available, but if you do have to cut the hard line of the transmission you will also need to flare the line so that the rubber hose can be secured on both sides of the cut line.

expert reply by: Jameson C