I finally succeeded in removing the doors on my JKU. 2 years of winter Canadian driving made them very tough to remove.

While doing so, the driver door bushing were completely shot. I had to remove the bushing of the driver side door. I lubricated all the pins with lithium grease and reinstalled them.

Do I need to reinstall new bushing ? Are they mandatory or should I remove them all ? What is the drawback of running without them ?

Thank you

 

The bushings keep the hinges from seizing.
You're probably ok for the very near term but I would replace the bushings asap.
Consider the upgrade to delrin bushings. There are several threads about them on the forum.

Also, take a good look at the alignment of your doors. There may be other reasons for the difficulty removing them.

 

Check out Magnitude Engineering for replacements that should last alot longer the oem ones

 

Definately worth the money. Had mine going on a year now.