I'm not looking for capacity so much as I am looking to help with rear-end sag...

Just curious ..... what's the situation when are you suffering "rear-end sag" that needs "help"?

 

Towing.

 

Last trip, I only had maybe 300# in the bed, and another ~100#, maybe 150#, in tongue weight.

My truck looked like I had a bed full of bricks or something in it. Rear wheel camber was disturbing. In fact, unladen, its bad enough.

I'm not going by any specific measurements here. I just want to give the rear coils a little help - nothing more - since there are literally no aftermarket air bags or heavier coils for these things.

 

This always the situation or age / spring-fatigue related do you think? I don't recall others reporting anything that bad here.

Noting that the price for a pair of OE replacement rear springs is only ~$120 (oops, that's USD from Hondapartsnow, maybe different in Canada), and wouldn't involve any of the compromises inherent in any spring-spacer 'fix'.

 

It's a '17 with only 45,000km on it. Perhaps its just Honda's IRS. It's just not as stiff. Many RL's, CRV's, Pilots I see around all have rear tires leaning like they're the front wheels of a race car.

What "compromises" are you referring to?

 

Point made, and more importantly, taken.

Thanks for the very thorough and thoughtful reply.

 

@SuicideRabbit what Model of 2G do you have? I have perused several of your posts and I am not seeing it.

 

"Touring" in the Canadian model lineup per his sidebar info.

If I'm not mistaken that's an AWD model with 5k# tow rating as standard.

 

I just did a quick measurement from the RR tire:

34" ground to top of wheel well.
20.25" middle-of-hub to top of wheel well.

Well, FWIW those are essentially a match with my '19 RTL-E. IMO that leaves the very long shot of spring fatigue, or possibly different OE spring rates (with same static length) - both very difficult to quantify and highly unlikely given the overall context info.

Methinks you're observing 'normal' behavior with your Touring, like it or not.

 

Methinks you're observing 'normal' behavior with your Touring, like it or not.

Ya... I pretty much said that above. I think I'm just used to solid rear axle trucks with straight tires and huge tire clearance within the wells...

I'll take your advice and let it ride!

 

Good to hear, I have to agree with @CentexG2 if you are basically matching his findings that it’s just a visual change from rear leaf to IRS. Now on the SumoSprings, I seem to recall a G1 owner using those or something similar, HERE! And This One!

 

I actually read both of those threads before posting here in the G2 section specifically. There really wasnt any sort of response that was actually informative.

 

YES. After roughly ten years of being aware of the existence of Coil SumoSprings, and snickering that I would never inflict such a cheesy product on any of my vehicles, I found to my dismay that my 2018 RTL-E had absolutely NOTHING else available to beef up the suspension.... Since no size was listed for my application, I jacked up the truck's rear end, took a measurement, made my best guess, ordered a pair and.... WOW. Easiest mod EVER, and such a dramatic improvement that I immediately repeated the process for the front. I subsequently determined that both the front and rear Sumos I had selected could be upgraded to the next taller size.... Even more WOW. When I traded in my 2018 for a 2020 RTL-E, I pulled out the Sumos and swapped them over immediately. I haven't towed anything over 2,000lb or hauled any heavy loads, so I can't speak specifically to load carrying, but they make the truck corner much flatter, without any perceptible (to me) decrease in ride comfort. They make a substantial improvement in 'speed bump resistance' (although not quite as impervious as the leaf springs and Roadmaster Active Suspension setup I had on previous trucks- I am still working on that!). I think they are wonderful, and that you would consider their cost money very well spent. Use silicone spray to make installation SO much easier! You need CSS-1145 in the rear, and CSS-1225 in the front for best overall performance. I figured that out the hard and expensive way, and have been driving my (two) Ridgelines on Coil SumoSprings for three years with no regrets whatsoever. Honestly, I wasn't sure I wanted to just give that info out to the world, but seeing that everyone else chiming in to answer you here has no personal experience with them, and is talking as if the Sumos are comparable to rigid coil spacers out of the old JC Whitney catalog, I felt I needed to do so....

 

When installing the CSS-1225 at the front, do you know how much it impacted the static height in the front? I have a 2020 sport ridgeline, AWD (Canadian). For my driving the suspension is way too soft at the front and the rear. At the same time I would like to raise the front static position 1 inch higher to make it leveled with the rear. I was thinking about the same setup that you propose, CSS-1225 front and CSS-1145 rear. Thanks for the great info.