jetrinka
Well-Known Member
- Messages
- 1,881
- Reaction score
- 2,429
- Points
- 113
Yeah that wheel hop can be quite alarming when you aren't expecting it.
Ram Heavy Duty Forum
Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Sumo springs Installed and tested. Ongoing.
- Thread starter Rockcrawlindude
- Start date
Rockcrawlindude
a rock crawlin’ dude
I pretty much know when to expect it at this point. It’s always places where you accelerate heavy and it’s bumpy.
I have a side road that I cross over to from a country store gas station. Crossing a super busy two lane and it’s bumpy transitions. Usually need to book it and it’s hoppy every time. Same with that railroad crossing at the red light I mentioned above. That one merges, you usually need to scoot or be stuck behind quarry trucks and it’s always very hoppy when you do.
loveracing1988
Well-Known Member
- Messages
- 390
- Reaction score
- 296
- Points
- 63
I'm considering getting the front sumo springs/boogie bumps for my 3500. Normal driving on road I never contact the bump stops but when I was beating on my truck a few weeks ago in sand when I got back I noticed the front bump stops do actually make contact with the axle. Rears still haven't touched anything but they are around 1.75-2" further from the axle than stock. Yours is about the only review I have seen on them so far, hopefully they continue to break in/feel better to you.
Rockcrawlindude
a rock crawlin’ dude
Pretty happy with them still. We did hit a bump the other day that we all said “oof” it was very hard bottom on them. I am back to the plan of lifting the truck 1” in the rear and another 1” up front. We have a road trip this weekend and that will be the determining factor
loveracing1988
Well-Known Member
- Messages
- 390
- Reaction score
- 296
- Points
- 63
I bet for the front a 2.5" spring level would be 2" with the weight of your bumper and Thuren makes a 1" rear spacer that would set you up perfectly and for at least the front you would gain a lot of ride quality.
Rockcrawlindude
a rock crawlin’ dude
I wouldn’t be happy with softer springs. I like the factory springs. My truck is perfect with stock springs, fox shocks and no front swaybar. The ride quality is amazing (well, it was before the sumos)
The sumos need more air gap on my truck. They ride too close to the axle. Once I fix this I’ll post pics but I’m about three weeks out til I can get to that
loveracing1988
Well-Known Member
- Messages
- 390
- Reaction score
- 296
- Points
- 63
I ran with the Thuren sway bar with stock springs for a couple weeks and it really helped side to side preventing me from hitting my head on the window but it still rode pretty rough but to each their own.
Rockcrawlindude
a rock crawlin’ dude
Yea mine is not rough at all. Sorry you had a rough riding truck.
H3LZSN1P3R
You're doing it wrong
The coils must be pretty soft then my front has never hit the bump stops even hitting some brutal bumps with my 800lbs plow hanging off the front… would you not be better off the the OEM springs and a spacer so you dont have to add the sumos? My truck rides great with the OEM springs and no front swaybar..
loveracing1988
Well-Known Member
- Messages
- 390
- Reaction score
- 296
- Points
- 63
Like I said, on road I have never hit the bump stops. I only hit them beating the literal crap out of my truck going through sandy whoops at 20-25 because I didn't want to air down my tires and I was afraid I'd get stuck. It was rough enough that I couldn't leave my hand on the body of my fox resi shocks. I'll never go back to stock coils especially with spacers because I'd end up coil binding the springs before using the bump stops at that point.
H3LZSN1P3R
You're doing it wrong
You wont need the bumpstops because the OEM coils can actually handle the weight is my point but even with the OEM coils and spacers it should hit the bumps before coil binding unless they changed the bumps on the 19+ i have not checked
Does these companys not sell lift coils that are not soft riding? Perhaps progressive coils?
Rockcrawlindude
a rock crawlin’ dude
Didn’t want to be in an aftermarket coil debate because it comes down to usage a lot of the time.
If I was beating on my truck bombing the desert I would certainly rather have the taller softer coils and aftermarket radius arms and probably the torsion swaybar if I was really going fast. Everything for increased travel and soaking up big bumps. My truck is used as a crawler hauler loaded down with camping gear, tools and recovery gear and then gets a trailer dropped on the hitch. My truck sees occasional mountain and forest service roads, nothing crazy.
Small spring spacer lift (1” currently, may go to a 2” front and 1” rear) provides me the added height to clear larger tires without giving up payload. I have new bump stops to install in the front and, as you see here, still working my way through the sumo situation in the rear until I have it dialed in the way I want it.
If someone came out with taller than stock springs that did not lower payload, I would consider them. With an actual taller spring I would not only gain height, but I would also gain the additional travel that a taller spring provides. Obviously I still have the same travel range of the stock spring but that’s plenty for my usage. The company that makes sumo springs actually does make taller extra capacity springs for these trucks but I haven’t found any actual customers who installed them
UglyViking
Well-Known Member
- Messages
- 1,410
- Reaction score
- 1,787
- Points
- 113
@Rockcrawlerdude I am not sure of the exact ratings of the Carli R2 coils, but they may suit your needs as they seem to hold at least 2500lbs and still have space between the bumpstops (carli blogpost about the R2 coils). I agree the Thuren coils are too soft for your use case. I'm currently running them and while they are amazing riding coils, I've realized I wanted to go another direction with the truck and am currently planning on swapping for the Carli R2 coils.
Thuren also makes a nice spacer kit for the rear (link) that bolts on so you don't have to worry about shifting or noise on more spirited drives. The nice thing is that it allows for adjustments in 1/2" increments from 5/8" to 1 3/8" lift.
As you mentioned, everyones use case is different and softer springs alone are not always the answer.
Thuren also makes a nice spacer kit for the rear (link) that bolts on so you don't have to worry about shifting or noise on more spirited drives. The nice thing is that it allows for adjustments in 1/2" increments from 5/8" to 1 3/8" lift.
As you mentioned, everyones use case is different and softer springs alone are not always the answer.
Rockcrawlindude
a rock crawlin’ dude
Thanks for sharing that. I recently found out that they offer those coils and I was excited initially but ended up being unconvinced that they were right for me. They are certainly a better option than the others. I have easily 4-500lb load as a base load constantly. I had never seen that blog so I just checked out that link.
They say the max payload of a 2500 is 2500lb and that’s what they tested up to (and squat pretty good) but my payload is a smooth 3200lb. I’ve had 2500lb in the bed of my truck and it was not squatted to level even with my front lifted. I believe I posted a pic in this thread already of that load then add the topper etc https://hdrams.com/forum/index.php?...-initial-impressions.11694/page-2#post-213419
The factory springs definitely suit my needs the best out of all the options available. I don’t even need the sumo springs, this is more of an experiment for me and I’m just sharing my thoughts as we wade through the sumo water together
UglyViking
Well-Known Member
- Messages
- 1,410
- Reaction score
- 1,787
- Points
- 113
Ah, assume you have the HEMI then? Either way, not trying to press any direction obviously, just figured I'd share the info.
Rockcrawlindude
a rock crawlin’ dude
M
i didn’t take it as you trying to push me, just sharing my thought process for the sake of others who may wonder
Rockcrawlindude
a rock crawlin’ dude
Pounded 300 miles of pavement this morning, not towing. Normal long weekend family loadout. First trip on the interstate with the sumos.
I didn’t notice them. We didn’t really hit any big bumps, though. Pretty smooth and unnoticeable on the open road.
They haven’t settled at all. Still almost sitting on them on flat ground.
I think I’m going to lift the rear 1” and make a spacer to bring the sumos down maybe 1/2”. For someone who didn’t want to lift their truck, the same thing could be accomplished by shaving 1/2” off the sumos. I think a little air gap and they’ll be perfect for me.
I didn’t notice them. We didn’t really hit any big bumps, though. Pretty smooth and unnoticeable on the open road.
They haven’t settled at all. Still almost sitting on them on flat ground.
I think I’m going to lift the rear 1” and make a spacer to bring the sumos down maybe 1/2”. For someone who didn’t want to lift their truck, the same thing could be accomplished by shaving 1/2” off the sumos. I think a little air gap and they’ll be perfect for me.
Rockcrawlindude
a rock crawlin’ dude
Should have a towing review for the folks following along by the end of next weekend.
Rockcrawlindude
a rock crawlin’ dude
Couple guys bailed and the weather stayed crappy so the ride got cancelled. So, I didn’t do any towing this weekend.
I’m excited to get some towing miles in, I really think they’re going to perform like airbags and really shine there.
Rockcrawlindude
a rock crawlin’ dude
Finally getting around to Letting you guys know about how these things work when towing. Remember when unloaded I was kinda thinking I wasn’t fully happy with them.
That changed.
The best way I can describe towing is phenomenal. The towing experience is absolutely amazing with the sumo springs. Easily easily far outweighs the few cons that I have been speaking about when unloaded.
The truck towed great before, but now bumps are handled perfectly. No boating or anything. Buttery smooth ride. In love. I want to give people rides to show off.
1” front level 750ish lb tongue weight. The tongue Weight puts the truck down on the sumo springs eliminating the air gap. Approximately half inch of squat static height.
That changed.
The best way I can describe towing is phenomenal. The towing experience is absolutely amazing with the sumo springs. Easily easily far outweighs the few cons that I have been speaking about when unloaded.
The truck towed great before, but now bumps are handled perfectly. No boating or anything. Buttery smooth ride. In love. I want to give people rides to show off.
1” front level 750ish lb tongue weight. The tongue Weight puts the truck down on the sumo springs eliminating the air gap. Approximately half inch of squat static height.