Up Travel vs. Down Travel and Limiting for 37" Tires
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Wow the Oklahoma mall looks alot like the mall here with 6 inch rocks
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- #23
This has turned into a great discussion, I am starting to understand now.
So in theory, I could space down my bump stops 2", space down the shocks 2", extend the brake lines (already have them waiting for install), and clear a 37" tire without loosing out on much travel. I am working with OME N73/74E shocks, Ironman 2" front springs and 862 springs in the rear. I really like how it rides now and if I can keep that ride with a larger tire it would be great. Now I realize that this is not ideal but until I have more cash coming in a proper lift just is not going to happen. It also seems that I will be reusing everything but the shock spacers with the larger lift so at least I won't be wasting too much money.
Please keep the comments coming as there is a lot of good information here.
So in theory, I could space down my bump stops 2", space down the shocks 2", extend the brake lines (already have them waiting for install), and clear a 37" tire without loosing out on much travel. I am working with OME N73/74E shocks, Ironman 2" front springs and 862 springs in the rear. I really like how it rides now and if I can keep that ride with a larger tire it would be great. Now I realize that this is not ideal but until I have more cash coming in a proper lift just is not going to happen. It also seems that I will be reusing everything but the shock spacers with the larger lift so at least I won't be wasting too much money.
Please keep the comments coming as there is a lot of good information here.
I run your exact spring setup. I kept the stock shocks because they aren't much shorter than the standard OME's. I also have a 1" body lift and I cut the fenders. Looking back I could run my skinny 38" tractor tires without cutting the fenders and probably without the body lift. Tread width makes a big difference in fitment. Put 37's on and go wheeling. You can tweek suspension once you see if it is necessary. I doubt you will be disappointed compared to a smaller tire.
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And I see you haven't flipped your 2nd vehicle yet Js93. The three link must be holding up this time around. And does the 93 stand for your birth year buddy, because you sure act your age. "the 6 inch rocks most on here play on"... who says junk like that? Ahh an 18 year old ************. We were all young once. Keep up the arrogant and overconfident banter and see where that takes you though bud
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ha ha ha no i'm 21 actually, over confident? most of the people on here have build maybe one or two trucks? most of them bolt on kits, i do admit i have seen alot of inmpressive fab skills on this website, i have built a large array of trucks just to name a few, my 86 4runner, 90 toy pick up, 92 yj, 3 or 4 cherokees, a tj here and there,and of course 2 80's, none of which are anything close to bolt on, not trying to be a smart ass just sharing my knowledge no need to be rude, and btw 83 was the year of my first cruiser
If I recall didn't you roll one of you 80's because of poor fab on your 3 link?
Not to be rude but if your fab skills were as good as you say that should not have happened.
You can set your truck up how ever you want, but the travel set up you are talking about is not ideal for an 80, to little up travel on these rigs makes for a poor handling rig especially if you have any weight in the back, you will be bottoming the shocks out and or not use the full range of the suspension travel.
I run 35's and like to be able to stuff that tire up in there with out bottoming the shock.
I run 12 inch travel shocks and do not have bump extension, I put shock bumps on the shock shaft and it works great for me.
I also modified the upper rear shock mount according to how I want my travel set up.
I am no expert, but I to also play in the big rocks like others do here.
Not to be rude but if your fab skills were as good as you say that should not have happened.
You can set your truck up how ever you want, but the travel set up you are talking about is not ideal for an 80, to little up travel on these rigs makes for a poor handling rig especially if you have any weight in the back, you will be bottoming the shocks out and or not use the full range of the suspension travel.
I run 35's and like to be able to stuff that tire up in there with out bottoming the shock.
I run 12 inch travel shocks and do not have bump extension, I put shock bumps on the shock shaft and it works great for me.
I also modified the upper rear shock mount according to how I want my travel set up.
I am no expert, but I to also play in the big rocks like others do here.
Well you can argue hypothetically as much as you like but heres some pics of up travel vs down travel.
14" Shock About 3" of uptravel
Tucks the rear wheel like this
Without shock bottoming out.
Giving this downtravel.
/EndThread
(note old pics are old, 80 looks a little better now)
Also note that yes there are no bump stops in the picture this was taken when getting measurements for the air bumps.
14" Shock About 3" of uptravel
Tucks the rear wheel like this
Without shock bottoming out.
Giving this downtravel.
/EndThread
(note old pics are old, 80 looks a little better now)
Also note that yes there are no bump stops in the picture this was taken when getting measurements for the air bumps.
sleeoffroad
Supporting Vendor
Not very good advice for most people running an 80. A general use 80 with some off-roading and expedition travel will suck with only 2" of up travel.
We are not building buggies here. These are heavy 80s. The vehicle dynamics are a little different.
Cool, it's become a picture thread!
I get this compression and extension - sitting around 4.5" up travel right now, would like to tweak it a bit for another inch of up travel in the rear - too much bumpstop needed for clearing the 37's w/ long travel shocks. So if I get a little too heavy on the throttle in whooped out sand I hit my rear bumpstops - which is the whole point of why you don't set up an 80 with 10% compression 90% extension. But I digress, look at the pretty pictures.
I get this compression and extension - sitting around 4.5" up travel right now, would like to tweak it a bit for another inch of up travel in the rear - too much bumpstop needed for clearing the 37's w/ long travel shocks. So if I get a little too heavy on the throttle in whooped out sand I hit my rear bumpstops - which is the whole point of why you don't set up an 80 with 10% compression 90% extension. But I digress, look at the pretty pictures.
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that was not due to "poor fab skills" it was due to my friend who was helping me neglcted to torque one of my lca bolts, i should have checked them myslf, but i didnt so its my fault, i learned from my mistakes
Well you can argue hypothetically as much as you like but heres some pics of up travel vs down travel.
14" Shock About 3" of uptravel
Tucks the rear wheel like this
Without shock bottoming out.
Giving this downtravel.
/EndThread
(note old pics are old, 80 looks a little better now)
Also note that yes there are no bump stops in the picture this was taken when getting measurements for the air bumps.
are those stock lca's? and that is in the range i said 2"-5", thats perfect, have you thought about re mounting your shock up higher so you dont massacre those sweet fox shocks? btw your front bumper looks amazing
Have you modified your rear upper shock mounts yet?
I messed with mine for a while until I got them to wher I wanted them to be after making a new mount bracket. It is still not perfect but it works.
I went with diy shock shaft bump stops i made and they work out for me.
Yep sure did
https://forum.ih8mud.com/80-series-tech/162864-extended-shock-towers-14-rancho-9000xls.html
It's a little tight opening wise since the shock bodys are so huge. I have plenty of shock left when I'm on the bumpstops, and plenty of clearance (3"+) if I pull the springs and just sit on the bumpstops (droped about 3"). But my tires are really close when the other side is fully extended. Finally gonna get to do some real wheeling next weekend and really see how close I am to hitting. I have some 1.5" rear coil spacers that I've thought of using to get some more up travel, I just don't like how high it sits with them on. Might experiment with them next weekend to. Gonna be a real 'sort it out' run with a little wrench time mixed into the wheeling. Haven't been able to wheel real extensively since the 37's went on, so I'm really looking forward to it. I'll have some more mall pictures to post anyway
That is similar to what I did but you have 2 more inches of shock than I do and I am running 35's
37's would nice but not practical for my use to much DD duty, plus I like the way the 35's stuff up into the wheel well.
37's would nice but not practical for my use to much DD duty, plus I like the way the 35's stuff up into the wheel well.
Tapage
Club 4X4 Panamá
caught my eye in this pic that the shock isn't bottomed and not close to the bump stop .. so what's stoping your axle ?
I noticed that to, unless he is dropping that bumpstop 5-6 inches he using his shock as a bumpstop.
Does not look like the ideal set up to me, but to each their own, it is a nice rig though.
Does not look like the ideal set up to me, but to each their own, it is a nice rig though.
Do those shocks have a built in bumpstop? I can't tell from the photo, or from the Fox website
Not 100% sure, but I don't believe so. When mine came, on the "use" instructions there was a warning against the extremes on compression and rebound. From the sheet: "They are not intended to handle severe top-out or bottom-out forces. Be sure to use correct bottom out stops and limiting straps in severe applications". They do however come with a small ~3/8" bushing on the shaft, that can barely be seen in the above photos.
That bushing will not do a thing.
