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08-18-2018, 06:51 AM
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#1
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Montana Fan
Join Date: Jun 2017
Location: Burleson
Posts: 111
M.O.C. #20065
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Suspension Leaf Spring Upgrade???
 Hello all. Has anyone upgraded the leaf springs on their 5'er? If so, what do you recommend? Our Monty already has the Mor/Ryde 4000 suspension but was wondering about an upgrade for the leaf springs. Your experienced advise is greatly appreciated. Thanks. 
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08-18-2018, 06:53 AM
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#2
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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The best upgrade is to the MORryde IS, but it's pricey but gets rid of all the current suspension parts.
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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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08-18-2018, 09:27 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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Put the IS on our old rig and towed almost 70,000 miles. Loved it. Already have an appointment to get it on the new rig along with disk brakes as soon as the fall rally is over.
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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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08-18-2018, 09:43 AM
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#4
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Unless you have broken or sagging leaf springs now … new springs will give you no noticeable difference. You could put larger capacity springs on, but your axle will remain at the rating it currently has. Ozz added leaves on one side of his fiver to "level" it up due to one side being heavier, but that's the only example I recall in many years on the MOC. Like mention … the IS suspension upgrade is well liked by people that put many miles on their RV's, but for what we use our rig for … the cost $$$ doesn't justify the means.
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08-18-2018, 10:16 AM
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#5
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 552
M.O.C. #21903
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After 2 leaf springs broke on 2 different trips, And the inside of 4 new tires wore away after 8,000 miles I decided to,get into it. From the factory, the axles are rated at 6,000 pounds each. The leaf springs were rated at 2,500 pounds each. No wonder the springs broke (also possibly due to age). Also, with the weaker springs, the wheels were bowed out causing the inside wear.
I installed 3,000 pound rated springs (have 1 more leaf than 2,500). Rig sits about 1 inch higher than before, and tires aren't bowed out. Also, both right tires were not properly aligned. Got that fixed.
Leaving on cross country trip next month. Bought tire tread depth gauge and will track tire tread wear to see if my fixes solved the tire wear issue
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'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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