Shock measurements?

Jake kozlowski

TJ Enthusiast
Original poster
Joined
Feb 17, 2018
Messages
320
Location
Elmendorf Air Force Base, Anchorage, AK, USA
So I just attempted to measure for shocks not sure if I did it correctly but here are my measurements.

Front:
Ride height: coil perch to bump stop cup 10"
Ride height: top to bottom shock mount 22.5"

Lifted the front end with sway bars disconnected, shocks removed, and both wheels off the ground, drooped.
Top to bottom shock mount 27"

Rear:
Coil perch to bump stop cup 8"
Top to bottom shock mount 20"

Lifter rear until both wheels off the ground, shocks disconnected, and sway bar links still on.

Upper to lower shock mount 25"

So if my math is correct, please correct me of wrong.

Front: 27" extended, 12.5" compressed, 14.5" travel

Rear: 25" extended, 12" compressed, 13" travel

Did miss anything? The shocks I had on were old es3000... No wonder why such a stiff ride, they have no rebound. Fronts measured 24.5" extended 14.5" compressed. Rear was 24" extended and 16"compressed.

Any and all help would be greatly appreciated for my next shocks, have my eyes set of some 5000x
 
It will be very difficult to find a shock that will have 13-14" of travel. The best thing to do would be to measure the shock length at full compression with the bumpstops set to preclude tire contact, and then find the shock that has a similar collapsed length. You may have to adjust the bump stops slightly to prevent bottoming out the shock.

Additionally you'll need to check that the springs won't fall out when the shocks are extended fully. If they do, you would need limit straps, which defeats the point of longer travel shocks.

The only shocks you would find that might fit your current specifications are the metalcloak 6 pack shocks. I believe they prioritize travel and flex over comfort.
 
Did you do this with the tires on? What size? Are the bump stops extended at all? Is a spring lift?
 
It will be very difficult to find a shock that will have 13-14" of travel. The best thing to do would be to measure the shock length at full compression with the bumpstops set to preclude tire contact, and then find the shock that has a similar collapsed length. You may have to adjust the bump stops slightly to prevent bottoming out the shock.

Additionally you'll need to check that the springs won't fall out when the shocks are extended fully. If they do, you would need limit straps, which defeats the point of longer travel shocks.

The only shocks you would find that might fit your current specifications are the metalcloak 6 pack shocks. I believe they prioritize travel and flex over comfort.
As to the point of springs becoming fully unloaded, you can also look into spring retainers but, only if it's an inch or two. Beyond that, I'd say you really need to consider limiting travel or going to higher level suspension arrangement.
EDIT: Or longer springs :)
 
It will be very difficult to find a shock that will have 13-14" of travel. The best thing to do would be to measure the shock length at full compression with the bumpstops set to preclude tire contact, and then find the shock that has a similar collapsed length. You may have to adjust the bump stops slightly to prevent bottoming out the shock.

Additionally you'll need to check that the springs won't fall out when the shocks are extended fully. If they do, you would need limit straps, which defeats the point of longer travel shocks.

The only shocks you would find that might fit your current specifications are the metalcloak 6 pack shocks. I believe they prioritize travel and flex over comfort.
The springs in the front were slightly off the perches in the front, maybe 1" max, but didnt move any further.

Are my measurments off since i went to the metal part of the bump stop? the bump stops go past the cup I would guess 2-3 inches, didnt measure them.

Did you do this with the tires on? What size? Are the bump stops extended at all? Is a spring lift?
Yes, tires were on, 255/75R17. There are bumpstops, didnt measure their size. Yes, full pro-comp lift kit.