Replace the box or pump?
The system has a hard time pushing around my smalish 33x10.5s to the point I frequently have to rev the engine in neutral just to get it to turn.
and seems to have been getting worse of the last few years. Had the opportunity to drive a buddy's 06 tj on 35s and there is a night and day difference in the ability to turn - especially arid down.
TO try to fix my problem I started with a fluid change and it did get a little better. I did it again a couple days latter and did get some more of the gunky looking fluid out but its a far cry from where it should be.
Nothing in the system leaks nor is there any whining noises or play.
So im at a loss of what to replace. I had thoughts of putting a Durango box on it but I don't want to do that just to find out I should have replaced the pump instead.
How can I tell if the pump is going or its the box?