I have an 04 Ranger and the right rear rail is rotted where the leaf spring mounts to back by the bumper. The repair kits on ebay only show 98-03. Will it work on an 04 frame?

 

04 is where the ranger just started changing and becoming more complex, and I don't believe they implemented any changes to the frame at this point, if they ever did. Even if they did make a change, it would have been very minuscule.

I cannot say for 100% fact if it will or not, but I'm very sure it will. The only changes in 04 I'm aware of are the hood and grille, as well as the gauge cluster.

 

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Should be fine, they didn't change the frame till 09 when they went to a 8 or 10 bolt bed bolt setup.

I did it on my Son's 01 4x4 chassis, piece of cake IMO.