How much front bumpstop?

[landtank]

Had some time today to do some measuring on the front axle for determining the bumpstop position.

First, I've got Slee's 4" springs with N73L OME shocks and 315s.

I removed the springs and raised the axle to the point where the Bumpstop touched the spring perch.

I then compressed the shock to see how much room there was between the axle mount and the upper bushing. I meaasured both side to be 2.5".

It would seem that no further drop in the bumpstop is needed to protect the shock at this point but I'm wondering what everyone would think is the minimum drop for the tires?

Thanks

 

[clownmidget]

Not a direct comparison, but with the 6" springs (+ 1" body lift) and the 315's, I could not get the front to stuff enough to even come close to bottoming out the N73L's. So I didn't fuss with the front bumpstops at all.

Front stuffed as far it'd go with rear PS lifted as far as it'd go.

 

[Nay]

Had some time today to do some measuring on the front axle for determining the bumpstop position.

First, I've got Slee's 4" springs with N73L OME shocks and 315s.

I removed the springs and raised the axle to the point where the Bumpstop touched the spring perch.

I then compressed the shock to see how much room there was between the axle mount and the upper bushing. I meaasured both side to be 2.5".

It would seem that no further drop in the bumpstop is needed to protect the shock at this point but I'm wondering what everyone would think is the minimum drop for the tires?

Thanks

I hate shocks with metal "booties"....you have no idea how much extension or compression is left. The only way to know is to actually measure with the shocks fully compressed....if you could see the shock uncovered this would be as simple as measuring the piston at static height and then measuring distance between bumstop and axle, giving about 1" for bumpstop compression.

But you gotta disco the shock and actually measure....not fun with gas pressured shocks

 

[landtank]

Well, just got out from under the rear and this is what I found.

To start, I'm calling the bumpstop the rubber wedge shaped bumper on the frame and the spring cushion that rubber piece located in the spring.

When I jacked the axle up, sans springs, the spring cushions contacted the axle at the same time as the bumpstop did with a 2" drop spacer mounted. At this point there was 2" of free travel in the shock from fully compressed to the attachment point of the axle.

Back to the front,

What I've done there to date is to purchase some FJ60 bumpstops because they bolt directly to the frame on the 80. However do to the shape of the 80 axle one bumpstop contacts earlier than the other. The one that contacts earlier contacts at the same time as the spiring cushion does. So for now I'm going to shim the short bumpstop by 1/2" to equal the other one and have them contact together with the spring cushions. This will have the front and rear setup similarly and in kind of a base point for when I finally get on the trails.

 

[T Y L E R]

Rick, you know what I'm running .. and we put in 2" BS's in the front ..


TY

 

[landtank]

Rick, you know what I'm running .. and we put in 2" BS's in the front ..
TY

Yes, but I question everybody's advice, just my nature, I have to Know for myself.

 

[T Y L E R]

Yes, but I question everybody's advice, just my nature, I have to Know for myself.

Well I question your intent to actually ever flex it to this extent.



TY

 

[landtank]

Well I question your intent to actually ever flex it to this extent.



TY

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