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09-20-2017, 02:37 AM
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#1
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Senior Member
Brand: Thor Motor Coach
Model: 2017 Thor Vegas 25.2
State: Indiana
Posts: 301
THOR #7993
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Installing SumoSprings on the front.
Of our 2017 Vegas 25.2
I know the suspension has to hang down to install them. Where do I put the jack and then the jack stands?
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09-20-2017, 03:43 AM
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#2
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Senior Member
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,766
THOR #3610
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Don't mean to seem harsh, but if you're asking this question, are you sure you should be doing the install? Safety!
__________________
Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-20-2017, 12:11 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: 37GT
State: Florida
Posts: 809
THOR #5246
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I was all set to do my own. Had a couple jacks and some jack stands. Then I got them and started reading the directions. My F-53 suspension on the Challenger may be different than your application, but when they started talking about taking off stuff and drilling holes in the frame, etc., I folded and found a RV shop to install.
The shop I found had never installed them before. For front and rear it took them about 7 hours if I recall correctly, and they had a ton of equipment available in a huge bay.
__________________
Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO
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09-20-2017, 12:50 PM
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#4
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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I have NO mechanical abilities...
But it still seems reasonable to let the Pros handle the REALLY important stuff!
By "important": I mean the stuff that you absolutely do NOT want to ever have any problems with!
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-20-2017, 01:12 PM
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#5
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Senior Member
Brand: Thor Motor Coach
Model: 2017 Thor Vegas 25.2
State: Indiana
Posts: 301
THOR #7993
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The ones for the E350 chassis screw into the one hole that you unscrew the bump stops from, and I'm only doing the front. Unscrew the bump stop (one bolt) and screw the SumoSpring into that hole. Seems kind of simple. Thanks for the advice and concern, but I'm waiting to hear from someone with an E350 chassis. I have a local Ford dealer with a large truck bay as a fall back if it looks too hard or dangerous.
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09-20-2017, 02:00 PM
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#6
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Would an E-450 chassis be the same?
I'll need to add them at all four corners...
My bike will seriously be taxing the GVW ratings of our rig...
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-20-2017, 02:39 PM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: 2017 Thor Vegas 25.2
State: Indiana
Posts: 301
THOR #7993
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The one for the front end of my Vegas looks like this:
No drilling, just screw it in.
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09-20-2017, 03:12 PM
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#8
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Senior Member
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,766
THOR #3610
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You'll want to place jacks on the frame near the axle your work in on with a jack stand as a back up.
__________________
Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-20-2017, 04:43 PM
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#9
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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I had them installed on our Axis as I simply don't have the jack or jackstand for that.
I do have a set of ramps but the suspension would still be compressed--I could just get under there easier. It only took the mechanic about 30 minutes to install them on the front, however.
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09-20-2017, 05:57 PM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: 2017 Thor Vegas 25.2
State: Indiana
Posts: 301
THOR #7993
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Quote:
Originally Posted by JamieGeek
I had them installed on our Axis as I simply don't have the jack or jackstand for that.
I do have a set of ramps but the suspension would still be compressed--I could just get under there easier. It only took the mechanic about 30 minutes to install them on the front, however.
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Are you happy with the way they perform? What about tipping around corners? Thanks.
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09-20-2017, 06:52 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: North Carolina
Posts: 184
THOR #6877
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Quote:
Originally Posted by jb1911
The ones for the E350 chassis screw into the one hole that you unscrew the bump stops from, and I'm only doing the front. Unscrew the bump stop (one bolt) and screw the SumoSpring into that hole. Seems kind of simple. Thanks for the advice and concern, but I'm waiting to hear from someone with an E350 chassis. I have a local Ford dealer with a large truck bay as a fall back if it looks too hard or dangerous.
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I had them put on my 2018 Vegas 24.1 E-350 and they are great. It seems like it would have been easy to install myself but I had the dealer do it along with the steering stabilizer - been very happy with the driveability ever since!
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09-20-2017, 07:27 PM
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#12
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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Quote:
Originally Posted by jb1911
Are you happy with the way they perform? What about tipping around corners? Thanks.
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They seem to have reduced the number of times the coach bounces after hitting a bump in the road; reduced that wallowing feeling. On turns it does seem to lean a lot less.
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09-20-2017, 10:16 PM
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#13
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Senior Member
Brand: Still Looking
Model: 2019 Coachman Catalina
State: Wisconsin
Posts: 216
THOR #5432
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I installed on my E450 class c on the front and removed them after a couple of trips and sent them back. It seemed like the steering got to be really jittery. I would hit a bump and the thing would just jump one direction or another. Very disconcerting. I had already installed Firestone helpers in place of the bump stops on the rear and helped a lot so I was figuring the fronts would help too. It seemed to me with the twin I beam front when one side gets unloaded from a bump then retouches the Sumo Spring it would kinda pull at the steering wheel unexpectedly. Just my thoughts.
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09-21-2017, 12:05 AM
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#14
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Senior Member
Brand: Thor Motor Coach
Model: Axis 24.1 KC's Big Box
State: Kansas
Posts: 2,171
THOR #3510
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Quote:
Originally Posted by jb1911
The one for the front end of my Vegas looks like this:
No drilling, just screw it in.
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Ron installed Sumos front and back on our Axis E450 ... he has a jack and jack stands and uses them often as he still likes to change oil on our vehicles...
If you know what you are doing, and can recognize what/where the bump stops are...and how to remove them and place the Sumos in place, correctly, you should be ok.....these are Rons words. He sez be sure to use LockTite ...
For those of you with the F53 frame...yes, the install is different...especially on the rear !
Ron
__________________
Ron & Kay n KC too !
2001 Scamp 13'
'KC's Little Box'
Jeep Wrangler TJ
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09-21-2017, 12:57 PM
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#15
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-21-2017, 01:24 PM
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#16
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Member
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Minnesota
Posts: 80
THOR #7948
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Quote:
Originally Posted by jb1911
Are you happy with the way they perform? What about tipping around corners? Thanks.
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We just had the SumoSprings you are considering installed on the front of our 2016 Axis 25.2 E450. With the 25.2's longer wheel base and shorter rear axel overhang, we were maxing out the front springs. By reinforcing the front springs the Sumo's have drastically reduced the severe leaning in corners and violent rocking in driveway entrances. I was concerned that stiffening the front springs would adversely affect the ride. But my wife, who suffers from back pain, says they have actually improved the ride. For us, SumoSprings are definitely a two thumbs up.
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09-21-2017, 11:07 PM
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#17
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Question:
With a 2017 E-450 chasis under my Outlaw: I'm given two choices
For the fronts: Either 500, or 1,000 pound capacity at 50% compression
For the rear: Either 1,500, or 2,800 pound capacity at 50% compression.
With my rig carrying a 1,200 pound trike in the garage (Plus all of the rest of our stuff!); would you suggest that I just go ahead, and purchase the heavier duty versions?
Thanks!
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-22-2017, 12:34 AM
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#18
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Senior Member
Brand: Thor Motor Coach
Model: outlaw 37ls
State: Europe
Posts: 230
THOR #6831
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don't use regular car jack stand, not strong enough
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09-22-2017, 01:19 AM
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#19
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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Quote:
Originally Posted by Bob Denman
Question:
With a 2017 E-450 chasis under my Outlaw: I'm given two choices
For the fronts: Either 500, or 1,000 pound capacity at 50% compression
For the rear: Either 1,500, or 2,800 pound capacity at 50% compression.
With my rig carrying a 1,200 pound trike in the garage (Plus all of the rest of our stuff!); would you suggest that I just go ahead, and purchase the heavier duty versions?
Thanks!
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Note that your toyhauler has most of that storage space behind the rear wheels. Putting 1,200 lbs back there will actually remove some weight from the front axle. Thus putting the heavier Sumo Spring on the fronts may be counter productive.
If you can get the heaviest part of the trike as far forward as possible that may help (e.g. I'm guessing backing it in would accomplish this).
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09-22-2017, 01:48 AM
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#20
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Site Team
Brand: Thor Motor Coach
Model: Axis 24.1 Windjammer
State: Illinois
Posts: 1,179
THOR #7074
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Very happy with the Sumo's ! Huge difference on Highway "semi push".
Driving one handed again.
__________________
Rev. Jeffrey 2017 Thor Axis 24.1 E450 Windjammer.
Silver Safe-T-Plus Steering Control
SSF-106-40 SumoSprings Solo Front Bump Stop SSR-107-47 SumoSprings Rear Bump Stop
Hellwig 7718 Front Sway Bar & 7180 Rear Sway Bar
Koni FSD Front Shocks 8805-1042 / Koni FSD Rear Shocks 8805-1043
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