Anyone know of a 40 lift for sale?

[FJsnoozer]

Need to make a decision asap on tires and having no lift limiting my choices. Just springs will do as I am willing to buy bilsteins if need be.

All 33x9.5s are on backorder. I WAnt 33x10.5 km2s but will need a lift. If I have no lift options I am throwing around the idea of 235/85r16s on some new wagon wheels. Also am looking at 255/85r16 which is the equivalent of a 33.5x10.0 which I assume wont fit, but am researching threads on MUD right now.

Thanks for insight or offers.

 

[Sea Knight]

Need to make a decision asap on tires and having no lift limiting my choices. Just springs will do as I am willing to buy bilsteins if need be.

All 33x9.5s are on backorder. I WAnt 33x10.5 km2s but will need a lift. If I have no lift options I am throwing around the idea of 235/85r16s on some new wagon wheels. Also am looking at 255/85r16 which is the equivalent of a 33.5x10.0 which I assume wont fit, but am researching threads on MUD right now.

Thanks for insight or offers.

You can easily run 33's with a 2.5" lift. Taller than 33 I'd be thinking 4".

I have a set of new/never mounted 4" lift Hell Creek springs that I decided not to use. PM me if interested. I'm in Austin and will be in town until mid-September.

I do not have bushings, U-bolts, or shocks but it's easy to source these components and build your own suspension. You'd end up with a better suspension than any kit that's available, IMO anyway.

FWIW, Man-A-Fre has a new iteration of their 40 springs that are supposed to be the greatest thing since sliced bread. Might be worth investigating.

HTH,
Lee

 

[FJsnoozer]

Thanks again, Lee!

I'm looking forward to getting out to a meet when I get the 40 up here in Austin. It will be great to meet all the other guys.

 

[Sea Knight]

Thanks again, Lee!

I'm looking forward to getting out to a meet when I get the 40 up here in Austin. It will be great to meet all the other guys.

You're welcome. Hope those springs work for you. They should be fine after flexing.

I'll be sure to keep you posted on the next Cruiserhead happy hour and/or Saturday morning meet. The more 40's, the better.

 

[FJsnoozer]

These springs are not going to work. I'm looking for alternatives if anyone has any.

Thanks

 

[Sea Knight]

These springs are not going to work. I'm looking for alternatives if anyone has any.

Thanks

Too short? Too stiff? I'm not in Austin but you can bring them back at your convenience the next time I'm in town. Probably a couple of weeks. I'll let you know when I get back.

Do you still want a 4" lift? IIRC someone had a set of 4" springs for sale on the MUD parts forum. That may have been several weeks ago but you might search.

I was mistaken. It's a 2.5" OME lift kit, complete. https://forum.ih8mud.com/sale-parts/448597-complete-2-1-2-ome-40-lift-like-new-800-a.html

You might also check out the new Mojave springs from Man-A-Fre. I think they come in 2.5" and 4", and you can buy the springs only.

 

[FJsnoozer]

I got measurements from Tom at Hell creek; they are the short ones . Also checked them against another set of HC 4" that aren't for sale.

I will Bringem back next week. I haven't seen any on mud recently.

Major bummer.

 

[Sea Knight]

I got measurements from Tom at Hell creek; they are the short ones . Also checked them against another set of HC 4" that aren't for sale.

I will Bringem back next week. I haven't seen any on mud recently.

Major bummer.

Sorry they didn't work. Please don't bring them back until you know I'm in town. I'll let you know when I'm back.

Did Tom say how much longer the new version springs are? I'm curious because there's a MUD thread that says the newer springs are only 3/4" longer, which doesn't seem like it would make much difference at all.

I'll probably keep them and use on a future trail rig. Atlas Spring will fabricate a longer outer leaf for around $30 per spring pack. That's probably the cheapest fix, for me anyway. Easier than moving the spring hangers, which is what some have done.

FJ40 Mojave Leaf Spring Suspension

 

[davegonz]

Can't you run longer shackles and make these work?

 

[Sea Knight]

Can't you run longer shackles and make these work?

Dave, there's several MUD threads on how to "fix" the short spring/shackle angle issue. Everyone seems to have a different opinion. The approaches I've seen described are--

1. Put 300-500 pounds of weight on the front and rear of the truck and flex the springs over a several day period.

2. Use longer shackles

3. Move the spring hangers

4. Replace the outer leaf with a longer leaf.

Or some combination of the above.

Hell Creek sold a bunch of the shorter springs and their initial advice was to flex the springs and be patient until they relaxed. I later heard that in an attempt to provide a better shackle angle out of the box the outer leaf was lengthened, but I never heard by how much. I laid my Hell Creek springs, which are apparently the short version, on top of Tucker's 4" Skyjacker springs and they were exactly the same length. So....heck if I know.

 

[FJsnoozer]

One is 1", one is 7/8" shorter. That's enough to create a positive angle.

Dave, the longer shackles actually make the angle worse.

A shackle reversal WOULD fix the issue with the fronts. Or of course, one could flip the shackle hanger.

 

[Sea Knight]

One is 1", one is 7/8" shorter. That's enough to create a positive angle.

Dave, the longer shackles actually make the angle worse.

A shackle reversal WOULD fix the issue with the fronts. Or of course, one could flip the shackle hanger.

Here's a relevant thread.

In post #39, Tom at Hell Creek advises letting the springs relax, and tells the user to change his shocks.

In post #61, Tom says he's lengthened the front and rear springs by 3/4".

From what Davis was told, Hell Creek has modified their 40 spring length again. When I get back I'll compare the "short" Hell Creek springs to my Old Man Emu springs. I already know they're the same length as Tucker's Skyjackers.

https://forum.ih8mud.com/40-55-series-tech/145610-4-lift-shackle-angle-now-what.html

 

[FJsnoozer]

The main issue is that front angle. That rear angle is livable and will settle. Tom also said "about 3/4"
He said he destroyed the original blue prints so they would never be made short again. My measurements gave me 1 and about 13/16ths to be exact.
this thread shows the revised springs freshly installed and settled...

https://forum.ih8mud.com/40-55-series-tech/203408-proper-shackle-angle.html

 

[davegonz]

Damn, some of those threads you guys listed show some horrible shackle angles.

Lee, have you tried to see if HC would swap them out for you?

 

[Sea Knight]

Damn, some of those threads you guys listed show some horrible shackle angles.

Lee, have you tried to see if HC would swap them out for you?

I spoke with Tom a couple of years ago when I first bought the springs. I called to see if his "lifetime warranty" would cover my springs. He said that if I wasn't pleased with the springs he'd "make me a deal" on replacements, but since I didn't buy them directly from him, even though they were new and never mounted, he wouldn't honor the warranty.

If I'm understanding Davis's comments, the rear springs would eventually settle and be OK, and the fronts would be OK if one did a shackle reversal? Do I have that right?

I guess I don't fully understand spring geometry, but an additional 3/4" in length doesn't seem like enough correction to make a significant difference in shackle angle. If that's all it takes, I'd think that even modest flexing would cause the springs to relax by that much. Tom must have thought so too initially, because his advice to first generation HC spring buyers was to give it time and let the springs relax.

 

[Sea Knight]

I have a set of 2.5" OME (heavy) springs that I intend to use eventually. I bought them after deciding that 4" was probably too much lift for my purposes. However, this discussion and the 3/4" difference in length has me curious.

When I finish putting my 40 back together. it'll have a 90 pound 4+ bumper and 120+ pound 8274 on the front, and a 150 pound 4+ bumper with tire carrier and a caddy that holds 3x5 liter jerry cans on the rear. So I'll end up with an additional 200 pounds on the front and probably 250 pounds extra on the rear when fully loaded. Admittedly I know zilch about spring rates, but it seems intuitive that carrying around that much added poundage would cause the springs to flatten enough that you'd end up with a decent shackle angle in a relatively short time. I may have to conduct some experiments and find out.

 

[FJsnoozer]

I'll post an intelligent response with probably an MSPaint blue print showing how it makes the difference.

But for now Im of to ACL.

 

[FJsnoozer]

Im just going to buy a new RC lift and be done with it.

Here are some thoughts on those shackle angles for you guys.

On the spring that is too short, the longer shackle has miniscule effect on shackle angle and wont solve the problem of a short spring. It also makes it hard for the spring to flatten out while flexing. Because truck would have to actually lift up to get over the acrum and into a positive angle.

On the example with longer springs, you can see how a longer shackle will decrease you angle. This is "to scale".

Eitger way, if you use these springs, hangers will need to be modified. Then they will be great.

 

[Sea Knight]

Im just going to buy a new RC lift and be done with it.

Never heard of that one.

 

[davegonz]

Yeah, you'd have to flatten the hell out of the springs (or move the front spring perches) before you can get good angles.