How about using the sub-frames of the seats from your truck and put them under the new seats ?
Can be done, will take a little time and take the backs off first.
There is a sub-frame that bolts to the seat pans and they should interchange.
I put my 03 sub-frames on a set of 02 seats that did have 99 sub frames on them… LoL on that one.
The guy PC had some 02 seats in his 99 Ranger and when we worked a deal I took the sub frames out of my '03 (60/40) Seats and put them in the 02 Seats.
The sub-Frame is the Slider part with the seat belts attached and they bolt to the Seat Pans.
The 60/40 portion will un-bolt from the frame work once everything has been remove.
IF you decide to take things apart, take the backs off the frame first and reassemble last.
4x4, 5sp, Std Cab, Stepside, E4 Red
4” Lift - Coil-Overs, 6” SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter