different truck, new problem

so the company i drive for stuck me in a different truck.. not slipseatin, but the one i was in was old.. this one is the same age, but less mileage.
it has a 4 foot antenna that looks like it came off an old mack.. lol.. and a 2 foot k40, on the other side.. with a little wire/tube.. thingy that ya can raise/lower.i hooked up my cb, as normal. but the swr rating is as faaaar over to the right as possible. on every channel. i tried to mess with the little antennas height, thing but it did nothing..oi found another.. 4 footer in the storage box, hooked it up to where the 2 footer was, and it did the same thing.. do i need new antennas or something else?? ive never had any problems like this in the past. lol


add: i tried to calibrate it..as normal..did nothin, tried my cb in the old truck again, and a buddys truck, and it worked

 

how would i check that?

 

the coax i can probably get to, but the wiring is tucked up in the headliner.. thingy... its an international 9200.. company truck, so i dont think they would like me takin apart their truck.. LOL, the coax is tucked in that area, then it looks like it goes in into a smaller wire that goes down the A pillar, then goes out to the mirror bracket.. etc.. the power supply wires are short, but i guess they work? the cb lights up and all.. i could probably jimmy rig something together if i had to, which i kinda need to do cuz our customers require us to use cb to comunicate with them...etc