I do know that the 2003 ranger passenger bucket seat bases are the same as the drivers side bucket seats bases. Holes on both sides so either side can use it.
The padding, the base coverslip and seat pans are the same for both sides.
On the backs, other than a specific part designated for driver or passenger sides then most parts should swap, like springs and other small parts.
Here is my qualifier... Other than swapping out seats in my 2003 ranger I do not know for sure about specific year changes.
Good Luck, I would check it out.
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