Anyone try these on their Expy?

[shinysideup2]

In my old days we used to jack up the rears by stuffing a sneaker between the coils. Now someone's figured out a way to charge $169 for this. Tie-wraps hadn't been invented yet so from time to time we'd loose a sneaker when going over a rough bump.

That's awesome. If it works, then why not?

 

[Nate03]

~$350-450 for the Ranchos + ~$150 for SumoSprings
Rancho RS999926 Quick Lift Loaded Strut (Right Rear) $155-200 + tax
Rancho RS999941 Quick Lift Loaded Strut (Left Rear) $155-200 + tax
CSS-1125 | Coil SumoSprings for various applications | 1.25 inch inner wall height $140 + tax
Hellwig 7688 Rear Sway Bar $250 ish

Do you know what the tongue weight of your boat trailer is? If it's more than 500-600lb, you should try to make a WDH work. Looks like it can be done according to the Googles. If it's right around 500-600lb (or less), you don't need the WDH. Either way, I would highly recommend the Ranchos due mostly to the adjustable damping.

Oscillation forces will increase when you tow due to the increased weight on the axle, requiring more damping. Increased damping will help with the bounce, but it won't necessarily help with sag or bottoming out. That's where SumoSprings could help, albeit not a huge amount. Better than nothing. Yes, it will put more dynamic load on the other spring coils, but that's just the springs doing their jobs. If they ever wear down and sag excessive (not hugely likely), springs are always replaceable. Heck At $300-400 for the set, you can replace the entire kit (spring + shock) every few years and chalk it up to a cost of towing.

I don’t have boat yet but with trailer assuming up to p6500 lbs with fuel and goodies. Not to mention crap we bring in back of Expy. if tongue weight is 10% it could be 650 lb. It’s an okay trailer to boot with only one of 2 axle having surge brakes.

 

[Nate03]

~$350-450 for the Ranchos + ~$150 for SumoSprings
Rancho RS999926 Quick Lift Loaded Strut (Right Rear) $155-200 + tax
Rancho RS999941 Quick Lift Loaded Strut (Left Rear) $155-200 + tax
CSS-1125 | Coil SumoSprings for various applications | 1.25 inch inner wall height $140 + tax
Hellwig 7688 Rear Sway Bar $250 ish

Do you know what the tongue weight of your boat trailer is? If it's more than 500-600lb, you should try to make a WDH work. Looks like it can be done according to the Googles. If it's right around 500-600lb (or less), you don't need the WDH. Either way, I would highly recommend the Ranchos due mostly to the adjustable damping.

Oscillation forces will increase when you tow due to the increased weight on the axle, requiring more damping. Increased damping will help with the bounce, but it won't necessarily help with sag or bottoming out. That's where SumoSprings could help, albeit not a huge amount. Better than nothing. Yes, it will put more dynamic load on the other spring coils, but that's just the springs doing their jobs. If they ever wear down and sag excessive (not hugely likely), springs are always replaceable. Heck At $300-400 for the set, you can replace the entire kit (spring + shock) every few years and chalk it up to a cost of towing.

FYI ranchos don’t apparently fit 17 expedition

 

[shinysideup2]

FYI ranchos don’t apparently fit 17 expedition

They do fit. I have them installed on my 2017 EL Limited. Rancho just never updated their support documentation. 3rd gen's pretty much all have the same suspension.

Sent from my Pixel 4a (5G) using Tapatalk

 

[James Lindley]

I tow a 6300lb travel trailer that puts about 1000 lb on the tongue of my 2017 EL. I use a 1000lb WDH. I had the SumoSprings on my stock rear springs/shocks, but it was still too bouncy. I wanted something adjustable (tow vs. street vs. off-road) so I went with the Rancho Quick Lift Loaded struts in the rear (p/n RS999926 + RS999941) and added SumoSprings to those too. Unfortunately, I had to buy another set of SumoSprings as the Rancho spring coils were closer together (1.25" vs 1.68" for stock springs). Towing is much nicer in all but the wallowy-est roads (urban Los Angeles freeways). Towing on wide open roads/countrysides, curvy mountain roads, or long desert highways are all much improved.

The ride with the SumoSprings (and Ranchos) is not rougher. You can compensate for harshness (noise) with tire pressures - I typically over-inflate my LR E truck tires to 60+ psi for better handling; 45-ish yields a much plusher and quieter ride. But "roughness" (over-spring) is not present with the stiffer Ranchos and SumoSprings unless the Rancho shocks are cranked up to 9/9 which I only use for towing. It could be that I'm biased towards sporty car suspension (stiff unibody + taught suspension). On the street, I keep the shocks at 7/9. For off-road anywhere between 3/9 to 6/9, depending on the terrain and the tires I'm running.

At this point I only wish I had gone with the Ranchos all around, but I had already invested in Bilstein 6112's which I now regret (too underdamped for the Expedition on undulating highways and roads with dips).

BTW, I do also have a upgraded rear sway bar (Hellwig) which helps with handling and lateral stability (crosswinds) when towing.

I do wish there were a King or Fox kit available for the rear of our Expeditions. I've only seen F-150 kits that we could use for our front suspension.

What Hellwig part number for the rear sway bar? So far I have replaced rear struts with adding SumoSprings and upgraded tires to Michelin Defender LTX M/S 125/122R E grade, best upgrade of both.

 

[shinysideup2]

What Hellwig part number for the rear sway bar?

Hellwig 7688. The unit I got was not a perfect fit. If you get the same, you may need to wrangle the frame mounts on there a bit and the bushings will be squeezed, but it will go in. I haven't had a problem in the 15k miles / 2 years I've had it.

 

[07xln]

After discussing with others this seems like a bandaid. I wish there was more available for expy

Of course its a band aid. Anything short of all new suspension is a band aid

 

[Anchorclanker]

I tow a 5500lb travel trailer. I installed these SumoSprings spring rubbers in my 08 LTD hoping they would reduce the rear sag. They did not. After install I measured the hitch height and the reduction in drop was negligible. After I added the WDH the ride height was within 1/2" of the unhooked measurement. When I replaced the rear coil overs I didn't bother swapping out the rubber and have been towing without issues ever since. I'm not familiar with the 2017 Expedition so they may work better for you.

Edit: Seems I need to update my profile info.

 

[Bubba Gump]

~$350-450 for the Ranchos + ~$150 for SumoSprings
Rancho RS999926 Quick Lift Loaded Strut (Right Rear) $155-200 + tax
Rancho RS999941 Quick Lift Loaded Strut (Left Rear) $155-200 + tax
CSS-1125 | Coil SumoSprings for various applications | 1.25 inch inner wall height $140 + tax
Hellwig 7688 Rear Sway Bar $250 ish

Do you know what the tongue weight of your boat trailer is? If it's more than 500-600lb, you should try to make a WDH work. Looks like it can be done according to the Googles. If it's right around 500-600lb (or less), you don't need the WDH. Either way, I would highly recommend the Ranchos due mostly to the adjustable damping.

Oscillation forces will increase when you tow due to the increased weight on the axle, requiring more damping. Increased damping will help with the bounce, but it won't necessarily help with sag or bottoming out. That's where SumoSprings could help, albeit not a huge amount. Better than nothing. Yes, it will put more dynamic load on the other spring coils, but that's just the springs doing their jobs. If they ever wear down and sag excessive (not hugely likely), springs are always replaceable. Heck At $300-400 for the set, you can replace the entire kit (spring + shock) every few years and chalk it up to a cost of towing.

 

[Bubba Gump]

Oops! I'm new to the forum and I meant to put the above quote in my post. shinysideup2, did your 2017 have any factory upgrades to the suspension? I'm asking because I have a 2017 EL XLT. It doesn't have any upgrades and I want to be sure that these rancho's will fit. I pull a 28 foot travel trailer and need to replace the struts anyway and if these would fit I'd like to make the upgrade for the adjustability. I spoke with someone from rancho and gave them the part numbers that you have listed and they said they don't have anything for a 2017 Expedition. Any help would be greatly appreciated. Thanks.