SuperSprings SSR-127-54 | SumoSprings Rear for Ford F-250|F-350, Yellow

These will not fit ALL F350's a dually has different set up than a SRW truck. Call Sumo first for the correct part number for your truck.

Factory mount does not work with 2023 f-350 with out modifications

Fully loaded 14klbgvwr camper on a f350 flatbed. Sumosprings on front and rear make it a smooth and softer ride. 1 big spacer used, 1-2" of clearance unloaded.

Do not buy these for a ford F250 without contacting sumo super springs first.What Amazon does not tell you or offer the special brackets you need to make these work on a ford F250.The perch that is on the frame of the truck is to narrow for the super spring to sit on.When you put weight on your truck they will slide off the support and break off.We we’re on a trip and the didn’t last two hundred miles.I decided to put air springs on while at our stay in Temecula Ca.It is worth the extra money if you use your truck a lot to haul a large load such as our fifth wheel RV.I do not recommend this product.

Took about 30 minutes to install instructions are very good, purchased to help with stability while pulling fifth wheel camper, haven't pulled camper yet but from what I see they should do the job. Some reviews mention that it gives a harsh ride when the truch is empty I don't notice any difference I used 1 of the 2 spacers included. 2021 f250

Got these to level the rear of my 2021 F350 Quad Cab, 4X4, SRW, Long Bed when pulling a 5th wheel that puts about 3100 lbs on the hitch (certified weight). I used these in the rear with one spacer so that there is clearance at the lower perch when there is no load on the truck. Before installing the SS's, this load would engage the factory overload springs. Measuring from the street to the highest point on the rear fender opening before and after SS installation show that the SS's gave me a 1-1/4 inch lift.Went on a 2650 mile trip driving on CA 5, 101, 580, and some CA state roads. Happy to say that I like how it leveled the truck, felt both under load and with no load. Basically, these are stiffer springs that still allow a nice flex under load. The ride did not feel much different and I also never felt that occasional solid bump when the jounce stops would engage. Before on this same route, there are some road-to-bridge transitions where I know the jounce stops would hit.Note that there was one area on the 580 about 1/2 mile from the south end of the Richmond/San Rafael bridge for about a 100 ft where the two right lanes are rippled like small moguls. I've driven it before so knew they were coming up. The truck started bouncing pretty vigorously and I suspect the overload springs started engaging and exaggerated the bouncing. The bounce stopped quickly enough and on the return trip I slowed down to about 45mph so it was less noticeable. Adding this in case you encounter similar roads with ripples. Roads with many pot hole repairs or uneven surfaces might do the same.From reading other reviews, I was concerned that the SS's would slip off the rounded lower perches but what I found was that the SS rests on the support almost centered and the rounded surface helps retain it.After taking measurements of the frame-to-jounce stop perch with the truck unladen, I decided on using 1 spacer to maximize the unladen clearance. Using 1 spacer allowed spring compression to be well within the 55% max compression allowed (in my case, 2 spacers would have been allowable too). Took me about 20 mins to install using a battery operated, 1/2 impact wrench (not required but handy). Uses the factory mounting plate and mounting plate hardware. You have to remove the plate then remove 1 nut that holds the jounce stop to the plate. The spring comes with a stud and new nuts.4 stars as I have noticed after the trip, that the overload springs now have about 1/2-inch of clearance. Maybe the load is slightly heavier, maybe the SS's have settled a little??? Time will tell and I'll update if anything dramatically changes. Still rides fine and I'm glad to have them.Update Feb 2023: Over 7K miles of towing and still going strong, no issues so far. Overload springs are maintaining the 1 to 1 1/4 inch gap. It changes slightly with the load.

2019 F250. I can only speak for the install at this point, I haven’t towed anything yet.Install was simple. I installed these last night in about 15 minutes, including the time to find my impact. This install CAN be done with a ratchet. I did not use a jack or jack stands at all, did not remove my wheels.This absolute hardest part is managing the tight area around the drivers side axle. It’s a little tight on space with the fuel/DEF tank, but can be done.I played around a little with the spacers and settled on the 1” spacer. I may adjust to the 1/2” when I put a load behind it, time will tell. I liked the air gap that I have with no load, but I will try to remember to update when I get a trailer behind it.

Instructions were easy to follow and the installations was easy. I have an F350 and these took away the chop feel when not pulling my trailer and even helped when pulling the trailer.For the money you will see an improvement I feel you will be happy with.Next step do the front springs.