Sumo spring blue SSR-610-40 vs SSR-612-40

$289 SSR-610-40 | SumoSprings Rear for Toyota Tundra, Toyota Tacoma, Nissan Frontier, Nissan Titan

SSR-610-40 vs

$282 SSR-612-40 | SumoSprings Rear for Toyota Tacoma, blue

SSR-612-40


Hello all. I am hoping people with knowledge of my question can reply. I had sumo springs ssr-610-40 in my 2016 Tacoma OR. I loved them. I towed my small travel trailer over 94,000 miles. With my traveling bed load and tongue load these sumo springs helpers bad me perfectly level. Unloaded the truck rode great too. I just traded the 2016 in. It had almost 180,000 miles on it and still ran like day I drove it out of snow room.


Now I have a new 2023 SR5. I went back to the SR5 4wd v6 because I just never used the OR features. I am going to be adding sumo springs to this truck but now I see the recommended sumo spring is ssr 612-40. From what I can tell this unit is shorter and smaller diameter, yet the rear suspension on the Tacoma 4wd is exactly the same. I’m worried with the smaller shorter helper I won’t get the same ride enhancement as the 610-40 gave me. So I’m toying with putting in the 610-40 even though the 612-40 is the indicated model needed.


Any advice would be helpful. These are just expensive enough to make research warranted. I’ve considered airbags. But I just have loved the maintenance free nature of the sumo springs. And they are so much easier to install. And they gave me 180,000 miles of driving and 94,000 miles of towing with no problems to the truck or reliability of the suspension helper. I will say they were quite at the end of their service life when I traded it in. Kind of falling apart. But after 180,000 miles that is no surprise.


I know there are lots of posts on sumo springs. But none answer the question I have.

 

How much shorter is the 612?

 

From what I’ve read the new one is about an inch shorter and significantly less diameter. The 610 did touch all the time. So that stiffened the ride some. But I never really noticed it much. Im worried the 612 may not be up to the task. But I don’t know. The 610 is still the recommended part for the 2016. But then 2017 and beyond the 612 seems to be the recommendation even though there was no change in the suspension design.

 

Looks like the 610 has one more ring of foam, 5 vs 4. If you were happy with the longer style bc of towing then get that one again.

 

I've been using the ones made for the Tundra without any issues. 610-47 if I'm not mistaken. I throw all the weight I want or need on the rear. I find factory Springs from Toyota to the utterly useless. Mind you I do have a 4-in lift and now switched out to 63s but still rock my Sumo Springs that I got warrantied after 5 years.. great company

 

The 610's are for 2nd gen, 612' are for 3rd gen. When you bought for your 1l2916, guessing they didn't redesign them yet for 3rd gen. 610's ride on 3rd gen frame. 612's have a .5-.75" gap from frame. I have a set of 612's laying around I'll sell you to you for $150, + shipping
I'm in upper MI. I used them for 2mpnths this past summer, before trading truck in.

 

Thanks everyone. I think I’m going to go with the 610s again. Was looking at Firestone airbags as well. But then was thinking I drove around on the 610s with blistein 5100 shocks for 94,000 miles of towing and 180,000 total miles and Never really even thought about them. They were definitely worn out and falling apart when I traded it. They urethane foam started to break down going through the last winter it saw. But I don’t think I can complain about that level of service.

 

The reason they were worn-out, and falling apart is you were riding on them all the time. That's why Sumo redesigned them (612's) So you would be riding on them full-time.

 

I think that recommendation for the 16 is wrong from memory- it’s just the newer sumo wasn’t available at that time. The rear is not supposed to be touching all the time. You want a gap, then when loaded it does its thing. If you are not lifted then go with the proper 3rd gen sumo

 

Ah didn’t read down post before writting

 

Also they make a set for the front too which are set up to make contact. And if your front is lifted, contact customer service and request spacers to close the gap

 

Thanks again. I think the reason they wore out was over 90,000 miles of towing and salt and sand from dirt roads. Even shock absorbers wear out. But yes riding in them all the time didn’t help. I wish they made one with same diameter but just one lobe shorter.

 

I doubt the diameter has much effect as you make it seem. If that’s your concern then go with the higher rated “foam” which is black I believe and get the proper model

 

I actually just thought of that. Thanks. I just emailed sumo. See what they say. From my engineer mind I think the diameter does make a difference. But he’s going with the black is also an option. My biggest problem is as an engineer I do get sort of an analysis paralysis on occasion. Lol. My 2016 setup worked so awesome. So I just am trying to make sure this setup will work again.

id love one that was about a ½ inch shorter so not in contact I loaded and still had the original 4 inch diameter in the blue as the blue can be compressed much more with damaging it and would not introduce a harsh ride element

 

Hopefully this pict posts. This is my setup. It’s gone over 90,000 miles truck and camper. Truck had just about 180,000 when I turned it in. Read end sits just about perfect traveling. And never a mechanical failure. About 300 lbs of gear in the back when I travel mostly in the front of the axle. 300 lbs of trailer tongue load. Probably another 200 lbs of gear in the cab and of course 250lbs of me. At the scales I’m at the high end of the limits but never overloaded. That’s why I figured just replace with 2023 before they screw it up imo. I like that I’m 34 feet from front of truck to back of trailer as I fit in 2 lines up parking spaces. And never had a problem. I have really considered the Firestone airbags. But they seem like such a hassle. And I’ve read unloaded they kind of make the ride hard. Also much harder to install.

 

The 610's, and 612 are the same diameter and density in the blue and black. The 612's is a lobe, shorter like you want. That's the only difference in the two models.

Ok, I found info on the two models610 vs 612. I was wrong on diameter. But load capacityisgreat on 612 vs 610. Hereisfrom Sumo site on both.

 

Having problems downloading info.

 

Trying again

 

Yes thank you so much…. that’s how I got the info. Awaiting sumo to write back. But I looked at the old picts o had of my 2016 and compared with the frame of the 2023. Nothing has changed. So I’ll probably just go with the 610 again. Why mess with something that so well for so long. 7 years. 180,000 miles. Clearly what I had in place was working well and not causing any problems.

 

Just to update the thread. I had not caught a critical difference in how they made the spring unit smaller but made the weight capacity higher. So I’m going to give the 612-40 a try. I got this response back from the sumo spring people. Figure go with what they designed for now just in case there was ever a warranty issue. It’s not that hard to install and if needed swap them out.

“Hello,

I definitely understand your concern, however, although our updated 612 kit is a bit smaller, it is actually rated at a higher capacity than the older 610 kit. The SSR-612-40 kit is rated at 1400 lbs, whereas the 610 kit is rated for 1000 lbs.

In terms of a similar spring, we do offer builder kits which are 5 inches tall and 4 inches in diameter. Our builder kits do not come with any bolts or brackets and the customer is responsible for outsourcing any parts necessary to mount the kit to their vehicle.

Builder kits link here: https://www.superspringsinternational.com/builder-kits/ “