88 pioneer Olympic

Ive heard that their are tuners for 88 renix 4.0 motor ive seen photos but i never found any and i was wondering if anyone has ever had any luck finding them

I'm sure this is nothing but a pipe dream but i wonder if it would be possible to put air ride seats in a mj not semi seats but you would probably have to make your own seats custom but i want to hear some ideas on how and if anyone else thought of it

I have a 1988 Jeep comanche Pioneer Long bed i dotn have back breaks and i want to delete the bed height valve how would i do that what parts would i need.

i want to delete this valve how'd i do that

Okay thanks

I have a 1988 jeep comanche and i can't get the air out of the brake lines i put new ones on and i get brake fluid out of the lines but no air but the peddle is still soft and their are no leaks what do i do