RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 

Go Back   Thor Forums > Thor Tech Forums > Modifications and Updates
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 07-17-2020, 03:42 PM   #21
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
The one is rough ridingClick image for larger version

Name:	Screenshot_20200717-074118_Amazon%20Shopping.jpg
Views:	46
Size:	44.9 KB
ID:	24979
__________________

__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 03:50 PM   #22
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Quote:
Originally Posted by t0lbert View Post
so i got the one piece? cant find the two piece on amazon?
Go sumosprings website and do a search for what works on your mh

I just guessed on your mh spec and sumo said only the 2 piece works. I could have your mh info wrong.
__________________

__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 04:00 PM   #23
Member
 
Brand: Thor Motor Coach
Model: hurricane 34J
State: California
Posts: 80
THOR #19488
Quote:
Originally Posted by halfprice View Post
Go sumosprings website and do a search for what works on your mh

I just guessed on your mh spec and sumo said only the 2 piece works. I could have your mh info wrong.



this is all that came up. then i type that model into amazon, guess just one piece?
Attached Thumbnails
Click image for larger version

Name:	Screen Shot 2020-07-17 at 7.58.54 AM.jpg
Views:	38
Size:	138.8 KB
ID:	24980  
__________________
t0lbert is offline   Reply With Quote
Old 07-17-2020, 04:03 PM   #24
Member
 
Brand: Thor Motor Coach
Model: hurricane 34J
State: California
Posts: 80
THOR #19488
Quote:
Originally Posted by halfprice View Post
Go sumosprings website and do a search for what works on your mh

I just guessed on your mh spec and sumo said only the 2 piece works. I could have your mh info wrong.



im confused, that looks like a two piece?


install that top piece in place of the oem bump, then install the base?


what am i missing?
__________________
t0lbert is offline   Reply With Quote
Old 07-17-2020, 04:07 PM   #25
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
The rebel is the 2 piece sumo
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 04:08 PM   #26
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Quote:
Originally Posted by t0lbert View Post
got this one.


im gonna cruise over to your pad, jerry!


i did the CHF and A/C vent fix today.
If this is what you got its 2 piece not 1
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 04:13 PM   #27
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Quote:
Originally Posted by t0lbert View Post
im confused, that looks like a two piece?


install that top piece in place of the oem bump, then install the base?


what am i missing?
Yes top goes where the bump stop was. Base gets installed on the leaf spring bracket. 1 hour job to install both sides
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 04:14 PM   #28
Member
 
Brand: Thor Motor Coach
State: Colorado
Posts: 54
THOR #12345
Quote:
Originally Posted by t0lbert View Post
so i got the one piece? cant find the two piece on amazon?
Class A’s on the F53 chassis have a two piece Sumo Spring for the front.
__________________
sduff is offline   Reply With Quote
Old 07-17-2020, 04:18 PM   #29
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Go to this site and scroll down to installation video

https://www.etrailer.com/Vehicle-Sus...leID=201635870
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is online now   Reply With Quote
Old 07-17-2020, 04:18 PM   #30
Member
 
Brand: Thor Motor Coach
Model: hurricane 34J
State: California
Posts: 80
THOR #19488
Quote:
Originally Posted by halfprice View Post
The rebel is the 2 piece sumo
Quote:
Originally Posted by sduff View Post
Class A’s on the F53 chassis have a two piece Sumo Spring for the front.



thank you guys!


ordered!
__________________
t0lbert is offline   Reply With Quote
Old 07-17-2020, 04:42 PM   #31
Member
 
Brand: Thor Motor Coach
State: Colorado
Posts: 54
THOR #12345
Quote:
Originally Posted by t0lbert View Post
i ordered the front (all i could afford), is that ok? or do they both need to be done?
I guess it depends on your coach. For me I am amazed at just how much the front springs helped in reducing sway and improving low speed cornering and high speed stability.

I am certain that adding the rears could only help more...but like you I held back on the rears for financial reasons as well ( and I was planning on adding Bilsteins).

Had I known that I wouldn’t be able to quickly add the rear Bilsteins due to my coach’s exhaust and heat shield blocking me on the passenger side I probably would have convinced the spouse to let me buy the rear Sumos.

Now, since I don’t have time to order the Sumos and install them before my next trip, I am going to see if the Sumos (along with the Bilstein steering dampener) are enough for me.
__________________
sduff is offline   Reply With Quote
Old 08-06-2020, 01:16 AM   #32
Member
 
Jake-n-Marty's Avatar
 
Brand: Thor Motor Coach
Model: Axis 25.3
State: Minnesota
Posts: 30
THOR #19097
Just installed front sumo springs on my 25.3 Axis. Couldn’t believe how easy it was. Accessed from under the front of coach. Took 15 minutes tops. Immediate change and one of the best upgrades in my opinion. **Just like everyone else has said**
Thanks all for the info and help.
__________________
Jake-n-Marty is offline   Reply With Quote
Old 08-06-2020, 11:32 AM   #33
Member
 
MichFigs's Avatar
 
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Michigan
Posts: 78
THOR #9701
Rear Sumo's

Just my two cents here...

we installed the front Sumo's when we first got our Vegas over two years ago now. We were so pleased with the difference in ride that we planned on adding the rear helper springs eventually. Well having completed that install in early July (a little complicated, as the factory floor bracing needed to be relocated and welded). We were very happy with the difference in the ride and handling on our first trip with the rig. Very little movement from other passing vehicles, road variations and crosswinds
__________________
"Our Dreamcatcher" is a 2018 Vegas 24.1
MichFigs is offline   Reply With Quote
Old 08-06-2020, 11:47 AM   #34
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 1,508
THOR #12751
Just an FYI.....

Super Springs is running a promotion of 15% for Sumo Springs for an F53 Chassis. They are also running a 10% promotion on other products.

I decided to add Sumo Springs to my Magnitude SV34 and take advantage of the 10% off even though I have been happy with the ride and handling.

I just added the Roadmaster Spare Tire Carrier and a spare tire to my Magnitude. The setup is adding at least 150lbs to the back of the coach so I decided to install the Sumo's as well.

They are coming today so I removed the stock bump stops yesterday. The passenger side was easy. The drivers side was slightly more work because of some wiring harnesses running over the mounting bolt.
__________________
Judge is online now   Reply With Quote
Old 08-06-2020, 02:19 PM   #35
Senior Member
 
Brand: Thor Motor Coach
Model: Siesta 24SS
State: California
Posts: 979
THOR #12698
Judge: You will notice a difference with them. They work great for me on the MB Chassis.

Paul
__________________
paulwadley is offline   Reply With Quote
Old 08-06-2020, 03:10 PM   #36
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 1,508
THOR #12751
Quote:
Originally Posted by paulwadley View Post
Judge: You will notice a difference with them. They work great for me on the MB Chassis.

Paul
Agreed..... I installed them on my last coach as well.... a 2018 Outlaw 29H... and they did make a difference.

The F-550 Super C chassis is pretty stock and I have been happy with it but when I saw them on sale and I added the extra weight in the back, I decided to install them all the way around again.
__________________
Judge is online now   Reply With Quote
Old 08-07-2020, 02:29 AM   #37
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 1,508
THOR #12751
After installing the Sumo Springs on my Magnitude SV34 today I noticed something that I had not thought about before.

I installed my rear Sumo's with the 1" spacer that is included. I did this on my last coach as well because these beasts are so heavy. This puts the Sumo in contact with the axle when the coach is at rest on all 4 wheels.

After raising my jacks and crawling back under the coach to check the Sumo's, I noticed the driver side Sumo was compressed more than the passenger side Sumo. At first I was scratching my head but then it all made sense and gave me reason to wonder about how the manufacturers setup.... or don't setup the suspensions properly from the factory.

My SV 34 has the following on the drivers side that add significant weight to that side of the coach:

- Generator
- Two Diesel Tanks
- DEF Tank
- Gray Tank
- Black Tank
- Residential Fridge

I started to wonder if Thor should be adding a leaf spring on the drivers side of the coach to better balance / level the coach.

I also started wondering if this could even lead to more chassis and structure flexing on the driver' side. Just so happens the issue I am having with the cap of the cab-over flexing and moving is visible on the driver's side.

In any case... I am glad I decided to install the Sumo's even though I was generally happy with the ride and handling and really had no intentions to do it. After seeing how much the suspension squats down with the jacks up and one side sits a little lower than the other really illustrates the need for a more fine tuned suspension from the factory. Adding Sumo Springs, Super Springs or some other similar solution is not a bad thing.
__________________
Judge is online now   Reply With Quote
Old 08-07-2020, 01:57 PM   #38
Senior Member
 
Brand: Thor Motor Coach
Model: Siesta 24SS
State: California
Posts: 979
THOR #12698
That does seem like a lot of extra weight all on one side. You would think the factory would have distributed the weight more even when building it.

Just thinking out loud right now.

Paul
__________________
paulwadley is offline   Reply With Quote
Old 08-13-2020, 04:38 AM   #39
Senior Member
 
Brand: Thor Motor Coach
Model: 2020 Magnitude BH35
State: Texas
Posts: 169
THOR #16693
Quote:
Originally Posted by Judge View Post
Just an FYI.....

Super Springs is running a promotion of 15% for Sumo Springs for an F53 Chassis. They are also running a 10% promotion on other products.

I decided to add Sumo Springs to my Magnitude SV34 and take advantage of the 10% off even though I have been happy with the ride and handling.

I just added the Roadmaster Spare Tire Carrier and a spare tire to my Magnitude. The setup is adding at least 150lbs to the back of the coach so I decided to install the Sumo's as well.

They are coming today so I removed the stock bump stops yesterday. The passenger side was easy. The drivers side was slightly more work because of some wiring harnesses running over the mounting bolt.

Which PN's (weight) did you install? Have you had a chance to drive and see if it helps with the hard/jarring bumps?
__________________
David & Danna
2020 Magnitude BH35
Midlothian, TX
cbach is offline   Reply With Quote
Old 08-13-2020, 11:44 AM   #40
Senior Member
 
Judge's Avatar
 
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 1,508
THOR #12751
Quote:
Originally Posted by cbach View Post
Which PN's (weight) did you install? Have you had a chance to drive and see if it helps with the hard/jarring bumps?

We will be taking it out tomorrow so that will be the first trip with the Sumo's installed.

There is only one part number for the rears for the F-550. It is a 2800lb rated spring (SSR-120-54).

I went with the lightest option for the fronts.... the 1000lb rated springs (SSF-111-40).
__________________

__________________
Judge is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 01:30 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×