Replacement Axle for a 2004 Keystone Montana

Updated 04/13/2026 | Published 04/07/2026

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Question:

Im looking for a replacement axel for my 2004 Montana 5th wheel. I need it to be able to have the springs mounted on top of the axel. The camper is 12K pounds. The reason I think the axel needs to be replaced is both tires are worn on the inside edge. The bearings are new this past season and so are the brakes. I can think of nothing else to explain the tires. Thanks for your help.

asked by: Steve S

Expert Reply:

Hey Steve welcome back! What you're describing definitely sounds like a bent axle.

There isn't a database that shows me what axle is on your 2004 Keystone Montana so you'll need to take a couple of measurements.

I've attached a diagram below that will show you exactly where to measure. Once I get those I can check our inventory and see what options we have available.

You can add this information, along with any other questions you have, where it says Add Comment.

expert reply by: Jerred H

Axle Measurement Diagram
(click to enlarge)

Steve S.

4/10/2026

68 center to center of the springs and about 77 between the backs of the breaks is what I measure. There are 6 lugs on the tires.

Jerred H.

4/13/2026

@SteveS Hey Steve, thanks for the measurements. The closest sizes I have are 72" and 86-1/2" hub face measurements. I do not have an axle that is going to work with a 77" hub face spacing.