I have the yellow and blue on my 4x4 and I like them. I'm not going to say they turned it from a truck into a Rolls Royce, but I like them. Except for the sick blue and yellow color that is.

 

Hope you like them better than I do mine. They suck.

 

At 50K I still have factory shocks and if I put as little as 600 lbs in the bed it greatly improves the ride quality on the frost heaved roads of IA and Southern MN.

 

I have the Bilstein yellow/blue on the rear and noticed a difference immediately, especially with the fiver. I probably should replace the front ones, too. pcm

 

I just picked up some 5100's for my ageing 1995 and I think im going to ge tthe 4600's yellow for my dads old Z71 k1500 chev that he pulls a 26' with

 

I had 5100's on my truck but went with Ranchos 5k. 5100's were great but were to stiff for me. This could be because of these 2 reasons, 1 I have rear air bags, 2 front lift springs are heavier load rating then oem. So Ranchos fit my bill better. But you can't go wrong with Bilstiens.

 

Rancho 9000 gets my vote,2nd truck got them also.

 

riped my 5100 off of my 2003 4x4 after 80k miles nothing wrong with them. they were like new.but they are great if you like the name bilstein,color , or ride off road 100% of the time, larger tires,or lifted. for me with stock tires and no lift,all pavement driving monroe reflex was the ticket ,night and day difference.firm and plush ride not the bouncing and jarring around any more!