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10-25-2018, 09:45 AM
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#1
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Junior Member
Join Date: Oct 2018
Posts: 4
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Rear end replacement
I have a 2002 Itasca Sunova. And about to replace the housing and its components in there and for a third time has anybody have any experience with this type of issue on a Ford Chassis
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10-25-2018, 10:00 AM
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#2
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Overloaded?
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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10-25-2018, 10:05 AM
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#3
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Senior Member
Join Date: Dec 2010
Location: Ocala, FL
Posts: 468
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Why are you replacing it? What's wrong?
__________________
2002 Fleetwood Fiesta 31H--F53, 2002 Toyota Tacoma Xtra cab, drive line disconnect.
2 cats: "Rusty"--male, 22 lb, 13 year old red mackerel tabby with white DSH, & "Penny"--female, 15 lb, 11 year old black and white DLH.
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10-25-2018, 10:45 AM
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#4
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,626
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!
Nobody could ever accuse me of being a mechanic, so can't help! Have fun and keep her between the ditches!
Good luck, happy trails, and God bless!
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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10-25-2018, 12:29 PM
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#5
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Feb 2000
Location: San Jose, Ca, USA
Posts: 2,693
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More information needed: what was the initial failure mode? What was done to fix it? Has it been the same failure mode each time? If not, what was the failure mode each time, and what was done to fix it each time?
__________________
Alan Hepburn - San Jose, Ca
2007 Bounder 35E being pushed by a 2020 Jeep Gladiator Sport S or a 2022 Jeep Wrangler Unlimited (JLU) Sport S
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10-25-2018, 12:43 PM
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#6
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Jul 2011
Posts: 3,790
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The rear axle installed in F53's are acquired from Dana Corporation and are used not only buy Ford but also GM and Dodge. One failure requiring compete replacement is rare, three is lottery ticket odds.
Did the same mechanic do the work on the prior two failures?
__________________
2006 Hurricane 31D built on a 2006 Ford F53
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10-25-2018, 03:49 PM
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#7
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Senior Member
Join Date: Nov 2013
Posts: 5,770
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Based on the assumption that the differential is a Dana/Spicer, I would question the fluid being used. Dana is pretty specific on their fluids and has several manuals on selection, specifications and what companies are approved to meet their requirements. I just spent a lot of time researching this and spoke to their tech support several times in the process.
The other thing I would mention is that there is a requirement if the wheel bearings are drained of fluid or removed that the entire differential must be tipped side to side by six inches and held for a couple of minutes on each tip to ensure fluid reaches the wheel bearings (after filling). Failure to follow this procedure on a rebuild will result in failure of the wheel bearings. Once that is done, the differential is set level and filled to the correct level. Their rebuild requirements are very specific and whoever is doing the work needs to follow the manual.
__________________
2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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10-25-2018, 03:56 PM
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#8
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Senior Member
Join Date: Aug 2017
Posts: 2,093
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Those axles are just about bullet proof . They will fail if severely overloaded , but failures are rare. Improper oil or not enough oil will cause it to fail.
__________________
1993 Tiffin Allegro Bay 32'
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10-25-2018, 04:37 PM
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#9
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Senior Member
Join Date: Mar 2009
Posts: 1,232
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Quote:
Originally Posted by vettenuts
Based on the assumption that the differential is a Dana/Spicer, I would question the fluid being used. Dana is pretty specific on their fluids and has several manuals on selection, specifications and what companies are approved to meet their requirements. I just spent a lot of time researching this and spoke to their tech support several times in the process.
The other thing I would mention is that there is a requirement if the wheel bearings are drained of fluid or removed that the entire differential must be tipped side to side by six inches and held for a couple of minutes on each tip to ensure fluid reaches the wheel bearings (after filling). Failure to follow this procedure on a rebuild will result in failure of the wheel bearings. Once that is done, the differential is set level and filled to the correct level. Their rebuild requirements are very specific and whoever is doing the work needs to follow the manual.
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You are right, Dana does say to jack up to make sure fluid moves around. Ford manual says to lightly pack the rear bearings, probably because they doubted anyone would actually jack up the axle 6" to move fluid around.
__________________
In between RV's at the moment.
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10-25-2018, 06:52 PM
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#10
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Senior Member
Join Date: Jul 2014
Posts: 35,349
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Are you having it towed with only one axle shaft pulled ?
That will get the spider and side gears spinning fast, without the ring gear splashing oil on them.
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10-25-2018, 07:20 PM
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#11
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Senior Member
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,208
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Welcome to the forum!
Summtin gotta be up with this....
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
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10-25-2018, 08:00 PM
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#12
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Senior Member
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 3,367
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2002 Sunova would be on an 18K chassis, right? That'd be a Dana 80. I know the bigger S135 had the tip the axle thing, not sure about the 80.
Like to hear the whole story.
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Tim.
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10-25-2018, 08:10 PM
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#13
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Senior Member
Join Date: Jun 2017
Location: Worcester Pennsylvania
Posts: 1,063
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I ripped the rear out of my E350 for an E450 box truck rear, what do you want to know?
Please show your Cat scale weight ticket.
__________________
2006 Fleetwood Bounder 35E Trek pure Trike, electric, 50 mile range, 7000 ,miles the get everything runner. To be toad list Done, Ford E450 toad. Stay & Play active brakes.
Full-time since 2018. LG 4.5 cu ft washer/dryer.
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10-25-2018, 08:20 PM
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#14
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Senior Member
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,208
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Quote:
Originally Posted by trx430ex
I ripped the rear out of my E350 for an E450 box truck rear, what do you want to know?
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What was the OP's failures?
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
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