How to determine if shocks need replacement? (1 Viewer)

[sandcruiser90]

Fairly new to FJ40s. Moderate mechanically challenged.
How do I determine if shocks need replacement? Mine rides pretty good on smooth roads and pretty bumpy on rough dirt roads with potholes. Is this typical to FJ40-mine is 1972 with OME 2 1/2 lift and 33x9.5x15 BFGs?

If I want to change shocks I understand that Bilstein 5100 is the way to go. Technically, do I jack up rig, let wheels hang, measure from top of shock bolt to bottom bolt, add an inch or so, order that, remove cotter and bolts and replace same way? Should I expect the bolt to be difficult to remove? d

Excuse the ignorance. This isn't my day job.

 

[unklwedy]

Generally determined by seat of the pants. FJ40's are not known for unbouncy ride. As to length of shock--remove and measure.

 

[shawnfj40]

Bounce it up and down and when you stop, it should as well. If it keeps bouncing for a bit, the shock is toast.

 

[emac]

Remove one and if it has zero resistance to compression, they are done.