2:58 am
January 27, 2011
Offline
Thought I'd start the debate now as I'll need to deal with it here shortly.
Here in a week or so, I'll be checking my bump stop and extension limits what with the new brake lines, e-brake cables and doing some fender and XJ specific suspension trimming. I'll have the minimum and maximum shock length to allow for using all there is. I know there is no shock that will accommodate both so here's the question ...
If you need to limit one or the other, compression or extension, which do you go with?
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If you do not change direction, you may end up where you are heading -- Lao Tzu
3:37 am
"TomD" wrote: Thought I'd start the debate now as I'll need to deal with it here shortly.
Here in a week or so, I'll be checking my bump stop and extension limits what with the new brake lines, e-brake cables and doing some fender and XJ specific suspension trimming. I'll have the minimum and maximum shock length to allow for using all there is. I know there is no shock that will accommodate both so here's the question ...
If you need to limit one or the other, compression or extension, which do you go with?
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Not the answer you are looking for but here goes... Limit comp. to prevent tire/body contact and shock bottoming unless they have internal stops. Limit ext. to the limit of: tie rod ends, track bar, drive shafts and how far the front springs un-seat. Be sure to ck brake lines with wheels turned both directions. There may be more to check....
4:47 am
Club President
April 2, 2003
Offline I use my steel tube fenders to limit compression. My shocks limit my extension to just before the springs fall out.
Worked for the yellow jeep and works for the black jeep so far though I still have some trimming to do.
5:37 am
January 27, 2011
Offline While doing the brakes (replacing wheel cylinders, calipers and all braking surfaces) I'm also replacing the break lines (+6") and E-brake cables (+18"). I had the nagging feeling the cables and hoses were my "limiters" ... not good.
While doing some work on the front brakes, I noticed the tire had come in contact both front and rear inside the fender well so I'm reinstalling my 1-1/4" bolt-in spacers. A little more width shouldn't hurt, right.
Later in the month after installing the leaf spring re-locator, extended shackle and front spacer then trimming the rear quarter panel, I'll get the jack stands under the body and see how the extension and compression measure up. Then I guess it's time for bump stops, limit straps and new shocks.
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If you do not change direction, you may end up where you are heading -- Lao Tzu
7:05 am
Optimally you want to measure the compression and extension of your suspension and adjust your shock mounting locations to match your shocks/ suspension travel. That way you aren't limiting travel by excessive bump stopping or short limit straps. Relocating shock mounts can be a pain but well worth it. I would also make sure your bump stops are in the right spot and will avoid the shocks bottoming out. Limiting straps are usually not needed on most leaf sprung suspensions. If the shocks are the right length the spring will limit the travel. Of course, this could change if you start desert racing.
1:21 pm
January 27, 2011
Offline I'll have some numbers to work with shortly. The real question, I suppose, is if you must limit one or the other (no shock or mounting will do everything) which will it be.
Thanks for the input.
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If you do not change direction, you may end up where you are heading -- Lao Tzu
1:38 pm
January 27, 2011
Offline "jsmorrow" wrote: [quote="TomD"]Thought I'd start the debate now as I'll need to deal with it here shortly.
Here in a week or so, I'll be checking my bump stop and extension limits what with the new brake lines, e-brake cables and doing some fender and XJ specific suspension trimming. I'll have the minimum and maximum shock length to allow for using all there is. I know there is no shock that will accommodate both so here's the question ...
If you need to limit one or the other, compression or extension, which do you go with?
=====
Not the answer you are looking for but here goes... Limit comp. to prevent tire/body contact and shock bottoming unless they have internal stops. Limit ext. to the limit of: tie rod ends, track bar, drive shafts and how far the front springs un-seat. Be sure to ck brake lines with wheels turned both directions. There may be more to check....
Not the answer I'm looking for? Sure it is! You've pointed out how to determine the extremes.
One thing to add. I've acquired a 1T pitman arm end with almost 60* travel which is much more than stock. All I need to do now is to have my v8ZJ pitman arm reamed to fit the end and I'll have a 1" drop AND more travel at the pitman arm.
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If you do not change direction, you may end up where you are heading -- Lao Tzu
1:42 pm
January 27, 2011
Offline "BKGM Jeepers" wrote: I use my steel tube fenders to limit compression. My shocks limit my extension to just before the springs fall out.
Worked for the yellow jeep and works for the black jeep so fa though I still have some trimming to do.
One other thing I was looking for was to have a "balanced suspension". My assumption? To have roughly the same compression and extension front and rear ... though my definition might be inaccurate.
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If you do not change direction, you may end up where you are heading -- Lao Tzu
5:48 pm
"TomD" wrote: [quote="jsmorrow"][quote="TomD"]Thought I'd start the debate now as I'll need to deal with it here shortly.
Here in a week or so, I'll be checking my bump stop and extension limits what with the new brake lines, e-brake cables and doing some fender and XJ specific suspension trimming. I'll have the minimum and maximum shock length to allow for using all there is. I know there is no shock that will accommodate both so here's the question ...
If you need to limit one or the other, compression or extension, which do you go with?
=====
Not the answer you are looking for but here goes... Limit comp. to prevent tire/body contact and shock bottoming unless they have internal stops. Limit ext. to the limit of: tie rod ends, track bar, drive shafts and how far the front springs un-seat. Be sure to ck brake lines with wheels turned both directions. There may be more to check....
Not the answer I'm looking for? Sure it is! You've pointed out how to determine the extremes.
One thing to add. I've acquired a 1T pitman arm end with almost 60* travel which is much more than stock. All I need to do now is to have my v8ZJ pitman arm reamed to fit the end and I'll have a 1" drop AND more travel at the pitman arm.
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Just keep in mind that when you change one thing it may affect others down the line. Don't want to keep re-doing like some of my "great" ideas. Hey, if your Chief also said " I will fight no more forever " ? He did not own a Jeep.
8:22 pm
January 27, 2011
Offline "jsmorrow" wrote: Just keep in mind that when you change one thing it may affect others down the line. Don't want to keep re-doing like some of my "great" ideas. Hey, if your Chief also said " I will fight no more forever " ? He did not own a Jeep.
HAHAHAHA. I'll look that one up. As far as re-doing, that's why I ask so many questions.
And you wouldn't happen to have a 1T ream, would you?
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If you do not change direction, you may end up where you are heading -- Lao Tzu
4:33 am
No, I don't have a reamer. I'm pretty sure he said that when the Nez Pierce finally made peace. ( Cut a few classes in junior high to sit in on a few at DQU in davis when it was new, it was then only 3 blocks away from the junior high. )
4:37 am
Club President
April 2, 2003
Offline Are you talking about a tapered ream for 1-ton steering? If so, I have one somewhere...
6:08 am
January 27, 2011
Offline "BKGM Jeepers" wrote: Are you talking about a tapered ream for 1-ton steering? If so, I have one somewhere...
That's what I'm talking about, thanks!!
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If you do not change direction, you may end up where you are heading -- Lao Tzu
6:17 am
January 27, 2011
Offline "jsmorrow" wrote: No, I don't have a reamer. I'm pretty sure he said that when the Nez Pierce finally made peace. ( Cut a few classes in junior high to sit in on a few at DQU in davis when it was new, it was then only 3 blocks away from the junior high. )
Thanks, and you are correct!
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If you do not change direction, you may end up where you are heading -- Lao Tzu
12:03 am
For rock crawling limit compression
For high speed limit droop
If you must.
That is all....... 😀
1:23 am
January 27, 2011
Offline "lj4x4" wrote: For rock crawling limit compression
For high speed limit droop
If you must.
That is all....... 😀
That sounds simple enough ... thanks!
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If you do not change direction, you may end up where you are heading -- Lao Tzu
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