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09-25-2014, 01:58 AM
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#1
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Montana Fan
Join Date: Feb 2010
Location: katy
Posts: 155
M.O.C. #10100
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Mor/Ryde IS vs SRE4000
On the newer Montana's I believe they come with the OEM of the SRE4000 suspension with 4" of travel. I'm wondering if the IS upgrade is still worth the cost. Hoping someone can ask Mor/Ryde today to compare and contrast the two systems. Their brochure indicates that with the Xfactor the 4000 system adds to frame strength and reduces torque but does not address thoes benefits with the IS.
Thanks. Scott
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09-25-2014, 03:17 AM
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#2
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Montana Master
Join Date: Jun 2004
Location: Benson
Posts: 3,121
M.O.C. #1658
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The IS system does not need the Xfactor as it has its own cross bars
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09-25-2014, 04:23 AM
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#3
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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As Charlie says, when you get IS they weld two square tubes across the frame. IMO making it stronger than the X factor.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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09-25-2014, 04:46 AM
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#4
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Montana Master
Join Date: May 2003
Location: New Bern
Posts: 4,294
M.O.C. #311
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I agree with both comments. The I (independent) S (suspension) has each tire reacting independent of the others with reference to bumps, rail road tracks etc. With the normal suspension the SRE 4000 links the front and rear tire and pushes or pulls the other. The two axle springs are connected to the SRE 4000. The IS does not. The IS is a much beefier assembly and does not have leaf springs.
I wanted Hydraulic Disk brakes and felt my leaf spring suspension could not withstand the 40% extra breaking TORQUE of the disk brakes so I went with the IS. I am very please with it and it just survived 6500 miles to Alaska and back where other units had to replace busted springs.
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09-25-2014, 11:30 AM
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#5
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Montana Master
Join Date: Mar 2013
Location: Hanover
Posts: 1,471
M.O.C. #13325
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Heard MOR/ryde this morning, and the IS gives another inch or so travel (which is good!), but frame stiffness wasn't addressed. IMHO if you've really bad roads you travel on a lot, you need either IS or the x frame reinforcement.
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09-25-2014, 12:02 PM
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#6
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Montana Master
Join Date: Dec 2011
Location: Roswell
Posts: 627
M.O.C. #12028
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Our new 2015 arrived with LRE 4100, what is the difference from SRE 4100, I can't find anything on their site.
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09-25-2014, 12:52 PM
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#7
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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X2 what John said. So far we've traveled over 13,000 miles since May, including 6,000 to Alaska and back, including the famous or is that infamous "Top of the World Highway". With the Mor/ryde IS and H rated tires we had no problems, while others had tire issues and other problem, and the lone Montana in our Caravan broke a shackle and almost pushed the spring through the floor.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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09-25-2014, 01:20 PM
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#8
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Montana Fan
Join Date: Feb 2010
Location: katy
Posts: 155
M.O.C. #10100
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Good feedback, thanks
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09-25-2014, 01:40 PM
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#9
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,697
M.O.C. #12947
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From what I understood, the LRE and the SRE are similar, except the LRE is factory installed and the SRE is after market. Both do the same thing.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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09-25-2014, 02:22 PM
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#10
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Montana Master
Join Date: Dec 2011
Location: Roswell
Posts: 627
M.O.C. #12028
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Thanks
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10-03-2014, 03:08 AM
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#11
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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Quote:
quote:Originally posted by mhs4771
X2 what John said. So far we've traveled over 13,000 miles since May, including 6,000 to Alaska and back, including the famous or is that infamous "Top of the World Highway". With the Mor/ryde IS and H rated tires we had no problems, while others had tire issues and other problem, and the lone Montana in our Caravan broke a shackle and almost pushed the spring through the floor.
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"H" rated tires? Tell us more: brand, rating, size and cost! 
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10-03-2014, 05:13 AM
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#12
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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If I heard it correctly at the rally the IS suspension is now option on at least the Big Sky. Did anyone hear the entire comment??
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10-03-2014, 05:41 AM
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#13
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Tom S, there are several people running H or J load rated tires/wheels on the forum. My Sumitomo tires are H rated, maximum load rated to 4805 pounds when inflated to 125 psi. They cost more and you have to change your wheels (rims) so they can handle the increased rating. Goodyear G114's are an example of the H rated tires. I had a set of five shipped via fed-x to me at a campground in maine when I ditched the Marathons after two blowouts getting there. I paid $3000 total from Trailer Tire and Supply in Northern Ohio. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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10-03-2014, 06:15 AM
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#14
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,707
M.O.C. #7992
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Rich, That is what I heard. The coach is built with the spec suspension. When it rolls off the line it is then towed to MorRyde to have the IS added. Jim
Quote:
quote:Originally posted by richfaa
If I heard it correctly at the rally the IS suspension is now option on at least the Big Sky. Did anyone hear the entire comment??
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__________________
2006 3000RK
2009 Ram 2500
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10-03-2014, 09:47 AM
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#15
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Montana Master
Join Date: May 2003
Location: New Bern
Posts: 4,294
M.O.C. #311
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Tom,
My H tires are Good Year G114 "H" tires. They are on 17.5 inch rims. These rims are over twice the thickness of the 16" rims.
One thing I learned is the 9/16 vice the 5/8 studes do reduce the weight rate of the rims.
As a late note my IS and H tires also survived the Top of the World highway as well as therest of the frost heaves with no problems.
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10-03-2014, 12:04 PM
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#16
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Montana Fan
Join Date: Apr 2009
Location: Afton
Posts: 166
M.O.C. #9256
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I too just got back from 14K miles to and around Alaska. Don't think I would have made it without the IS!
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