Question for Suspension Guru's!

[nissanh]

My 3rd gen has a lift and current standing height in the rear (upper shock to bottom shock mount) is 18.5 inches.

I have 4th Gen Bilstein 5100 33-187174 installed. The Compression length is 14.91 inches and Extended length is 23.5 inches (about 9 inches of travel):

The rear axle have about 3.6 inches of up travel before the shock bottoms out (the gap between the bump stop to axle is about 1.5 inches): The down travel is 5 inches before fully extending.

Basically the shock sits right in the middle of its travel length. Is this suitable or should the shock/axle must have more up travel than down travel? or vise versa?

Should there be more gap between the bump stop and axle (mine is at 1.5 inches)?

Thanks for your time!!

 

[Bad Luck]

My 3rd gen has a lift and current standing height in the rear (upper shock to bottom shock mount) is 18.5 inches.

I have 4th Gen Bilstein 5100 33-187174 installed. The Compression length is 14.91 inches and Extended length is 23.5 inches (about 9 inches of travel):

The rear axle have about 3.6 inches of up travel before the shock bottoms out (the gap between the bump stop to axle is about 1.5 inches): The down travel is 5 inches before fully extending.

Basically the shock sits right in the middle of its travel length. Is this suitable or should the shock/axle must have more up travel than down travel? or vise versa?

Should there be more gap between the bump stop and axle (mine is at 1.5 inches)?

Thanks for your time!!

If you are trying to utilize all of your up travel then you will want to flex out the rear to the bumpstop (or remove the springs and rest the vehicle on the bumpstops) and measure how much shock you have left then adjust your bumpstop accordingly. Make sure to leave a little bit of wiggle room for when the bumpstop becomes over compressed during a hard hit like a speed bump/curb/rock/person/etc.

As for up/down travel I would say you are in a good spot, but more usable up travel will help your suspension from bottoming out causing a harsh ride.

 

[nissanh]

Thank you! Yeah, I can do about an inch up travel if I trim the bump stop.

 

[phattyduck]

Inner spring cone bump stop or frame bump stops? The ones inside the spring compress a lot and are just for overload. Measure the frame hard bump stops to axle and report back.

-Charlie