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  1. #1
    Left The Driveway
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    Axle & brake questions - 2600RB

    What weight axle used on 2600RB ?
    Are they self adjusting Brakes ?
    2017 Imagine 2600RB on order
    2009 f150 5.4 Super crew

  2. #2
    Seasoned Camper Rivercityjeff's Avatar
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    2600RB axle research

    Old thread but, I've done some research on the issue.
    2017-2018 the axles are rated at 3500 lbs due to the springs. Made by LCI
    2019 the axles are rated at 4400 lbs and made by Dexter, not LCI

    I contacted Lippert regarding upgrading the springs on my 2017 2600RB. The axle tag shows Variant V000113220. This identified the axle as having a 3" diameter beam. Interestingly, LCI uses the same beam for axles up to 7000 pounds. Click image for larger version. 

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    The lady I spoke with said,"Going from 1750 rated to 2000# is LCI's normal recommendation." However "the 2200# spring would work and not exceed the axle strength." Seems LCI does not normally offer a 4400# spring axle assy. When pressed about additional parts I would need to utilize the 2200# on my axle, she was unable to find any.

    Below are the specs of the springs discussed and the Standens Number for your local spring shop to cross-reference.

    Original (Sagging Rusty Springs)
    Lippert SKU 124903
    Standens Number 72-42
    Capacity (Lbs) 1750
    Loaded Length (Inches) 26
    Leaves 4
    Eye to Eye Length (Inches) 25 1/4
    Loaded Arch Height (Inches) 1.5

    LCI "suggested upgrade"
    Lippert SKU 125797
    Standens Number 72-24
    Capacity (Lbs) 2000
    Loaded Length (Inches) 26
    Leaves 3
    Eye to Eye Length (Inches) 25 1/4
    Loaded Arch Height (Inches) 1.75

    Springs Specs I plan to crossreference and use
    Lippert SKU 129745
    Standens Number 72-78
    Capacity (Lbs) 2200
    Loaded Length (Inches) 26
    Leaves 4
    Eye to Eye Length (Inches) 25 1/4
    Loaded Arch Height (Inches) 2 (I can handle a 1/2" rise)
    Last edited by Rivercityjeff; 02-14-2019 at 06:21 PM.
    Jeff and Mary
    2017 2600RB
    2022 F250 Lariat CC 6.7 w/ Max Tow
    Round Rock, (Donut Capital of Texas) <><

  3. #3
    Left The Driveway
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    Results of Upgrade?

    Jeff,

    I found the same info from Lippert and was planning to do the same upgrade. However my purpose is to try to gain about 1" tire clearance from trailer "fender" area. Space above tire is only 2" and is beginning to rub the floor. How did your upgrade go?

  4. #4
    Seasoned Camper Rivercityjeff's Avatar
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    Quote Originally Posted by BAP911 View Post
    Jeff,

    I found the same info from Lippert and was planning to do the same upgrade. However my purpose is to try to gain about 1" tire clearance from trailer "fender" area. Space above tire is only 2" and is beginning to rub the floor. How did your upgrade go?
    We have 6000 miles since the upgrade. I would do it again.

    The springs were shot and rubbing the wheel well, so we had to address them. We had the hangers reinforced with angle iron and added the CRE 3000 too. The funny part is I think the Goodyear Endurance tires (with their stiff sidewalls) make the most difference in reducing sway and roll.

    Loaded measurements (Trailer leveled fore-aft, but the ground was not level):

    Left Side (driver's side). Right Side
    Top of spring eyelet is 2 1/2" Top of spring eyelet is 2 1/2"
    Front Spring - Top to frame 6" Front Spring - Top to frame 5 1/4"
    Rear Spring - Top to frame 6 3/4" Rear Spring - Top to frame. 6 1/4"
    Top of spring eyelet is 2 1/2" Top of spring eyelet is 2 1/2"

    Measuring from the top of the spring eyelet to the top of the spring for arc:
    Left Ft. 3 1/2" Right Ft. 2 3/4"
    Left Rr. 4 1/4" Right Rr. 3 3/4"

    Average arc 3.56". ***If you measured from the center of the spring bolt, my numbers would be approx. 3/4" higher.

    Even parked on uneven ground, the minimum tire to wheel well was just over 3".

    Note:
    1. The bronze bushing do not fit all springs, and did not fit the new springs. Spring shop said the plastic would serve us well. We will see.
    2. A Commerical truck spring and alignment shop did our springs for much less $ than the local ("we are 4-6 weeks behind in January") RV shop.
    3. The spring shop sold us 2250 lb. rated springs as the 2200 were special order. $400 installed. Only after our former RV tech installed the CRE3000 did "we" realize springs were needed.

    Our upgrade survived Michigan and Indiana potholes aka, highways.

    Upgrade recap:
    1. GD Endurance tires
    2. Morryde CRE 3000 suspension
    3. Morryde shackles with wet bolts, sans bronze bushings
    4. Spring hangers re-enforced with welded angle iron.

    When talking with Morryde, I was advised NOT to do the cross brace UO21-003.
    Last edited by Rivercityjeff; 02-01-2020 at 04:12 PM.
    Jeff and Mary
    2017 2600RB
    2022 F250 Lariat CC 6.7 w/ Max Tow
    Round Rock, (Donut Capital of Texas) <><

  5. #5
    New Member
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    What about just going to a local spring shop to have the existing springs redone? I have had leaf springs rebuilt for several vehicles so I can't see why they can do it for a trailer. If you work with the shop you will get exactly what you want. Here in Boise we have Boise Spring Works. I have never used them so not recommending or endorsing them, but I did use a shop in Seattle when I lived there and am sure most cities of a reasonable size have a similar business to do the work.

  6. #6
    Left The Driveway
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    Spring upgrade

    Sure glad to hear that it has worked well. I plan to add Morryde heavy duty shackles. Already have Correct track and Carlisle tires.
    It's a big "ask" but if you can, can you check the compressed arch on the 2200 springs. My current springs are 3 1/16 unloaded arch, but less than
    1 5/8" arch when loaded. Scale weight on axles is only 5,800 lbs total, well under the 7,000 ( dual 3,500) capacity.

  7. #7
    Seasoned Camper Rivercityjeff's Avatar
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    Nice day to crawl under the trailer in Texas 73 degrees!
    Jeff and Mary
    2017 2600RB
    2022 F250 Lariat CC 6.7 w/ Max Tow
    Round Rock, (Donut Capital of Texas) <><

  8. #8
    Left The Driveway
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    My project just go postponed. Too much snow. Click image for larger version. 

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  9. #9
    New Member
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    I am just now going through this "spring/axle flattening" thing. Fortunately LCI - Lippert is covering everything-

  10. #10
    Seasoned Camper Rivercityjeff's Avatar
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    Quote Originally Posted by paraskier View Post
    I am just now going through this "spring/axle flattening" thing. Fortunately LCI - Lippert is covering everything-
    Wonderful! So glad (and surprised) Lippert is stepping up for you.
    Jeff and Mary
    2017 2600RB
    2022 F250 Lariat CC 6.7 w/ Max Tow
    Round Rock, (Donut Capital of Texas) <><

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