We don't have any fit info for trailer wiring for your 1989 Jeep Comanche, but a universal trailer wiring harness like part # 119178KIT would work well since this is also the same harness recommended for the 1989 Jeep Cherokee which is what the Comanche is based off of. view full answer...
The Westin Fey Diamondstep Rear Bumper part # 63000 should fit a 1986 Jeep Comanche using the Custom Installation Kit for Westin Diamondstep Bumpers part # 97900. I checked with Westin and they only show the custom brackets for a 1987+ but I was not able to find any difference between the 1986 and 1987 model year. view full answer...