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Jacking up 5th wheel?

riltri
Explorer
Explorer
When you jack up your 5th wheel do you:
- place the jack under the axle between the hanger u-bolts
- jack up the frame
- use a ramp to drive the good tire onto
- other...please explain
Blue Ridge Mtns - NC
32 REPLIES 32

Cummins12V98
Explorer III
Explorer III
laknox wrote:
Cummins12V98 wrote:
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


With the tire flat how do you get that under the axle?


Well, given that my 12t lo-pro jack is < 8" tall, you could easily angle it under the axle, between the u-bolts and stand it upright. Especially as the axle is angled upwards from the flat to the inflated tire.

Lyle


Thanks, just seems so much easier to simply pull up onto something under the good tire (and safer).
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

laknox
Nomad
Nomad
Cummins12V98 wrote:
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


With the tire flat how do you get that under the axle?


Well, given that my 12t lo-pro jack is < 8" tall, you could easily angle it under the axle, between the u-bolts and stand it upright. Especially as the axle is angled upwards from the flat to the inflated tire.

Lyle
2022 GMC Sierra 3500 HD Denali Crew Cab 4x4 Duramax
B&W OEM Companion & Gooseneck Kit
2017 KZ Durango 1500 D277RLT
1936 John Deere Model A
International Flying Farmers 64 Year Member

Fisher_Bill
Explorer
Explorer
Veebyes wrote:
Fisher Bill wrote:
I use a floor jack and then put 6000# jack stands under the axles I'm working on.


You carry a floor jack & jack stands with you on the road??


No, I thought he was speaking of driveway repair, I used the truck jack on the side of the highway and with the big trucks going by the trailer was moving around, didn't like that felling but completed the job.
2006 Chevy 3500 Dually 6.6 Duramax Diesel & Allison Transmission
2010 Northshore 28RK by Dutchmen
Our first fifth wheel!!!

StirCrazy
Nomad III
Nomad III
cummins2014 wrote:
laknox wrote:
riltri wrote:
When you jack up your 5th wheel do you:
- place the jack under the axle between the hanger u-bolts
- jack up the frame
- use a ramp to drive the good tire onto
- other...please explain


I know I'll catch **** for it, but if it came down to it, I'd use my 4-point leveling system to jack the whole rig up. Each jack is capable of lifting nearly the whole GVW of my KZ, so 2 should work well, let alone all 4. Just leveling my rig out in the street in front of my house leaves the curb-side tires off the ground about 2".

Lyle


Glad you mentioned it ,was going to pm the OP to use level up . I have replaced the tires, doing that ,and taking them to the tire shop. Also did my bearings ,and new brake shoes that way recently . I can catch he!! with you . ๐Ÿ™‚


I do the same thing, couple chinks of wood under each jack and lift away, lets me check the drag on the rest of the brakes while I am at it also.

Steve
2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100

Cummins12V98
Explorer III
Explorer III
On my last Mobile Suites I replaced all the spring bushings, a couple rotors, wheel studs, a couple calipers and all brake pads. All that on the simple TrailerAid.

Oh and those same OVERLOADED tires were still intact after four years of fulltimimg when I traded it in.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

rhagfo
Explorer III
Explorer III
Veebyes wrote:
Fisher Bill wrote:
I use a floor jack and then put 6000# jack stands under the axles I'm working on.


You carry a floor jack & jack stands with you on the road??


Well the OP didnโ€™t specify if it was changing a tire or doing bearing/brake service.
Changing a tire bottle jack under the axle at spring location. Get old tire off slap new on.

Bearing/Brake or suspension work, jack on frame, place wood cribbing under frame just behind back spring hanger, jack stands just aft of landing legs.
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

Veebyes
Explorer II
Explorer II
Fisher Bill wrote:
I use a floor jack and then put 6000# jack stands under the axles I'm working on.


You carry a floor jack & jack stands with you on the road??
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter

2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel

Ham Radio: VP9KL, IRLP node 7995

Fisher_Bill
Explorer
Explorer
I use a floor jack and then put 6000# jack stands under the axles I'm working on.
2006 Chevy 3500 Dually 6.6 Duramax Diesel & Allison Transmission
2010 Northshore 28RK by Dutchmen
Our first fifth wheel!!!

JRscooby
Explorer II
Explorer II
Cummins12V98 wrote:
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


With the tire flat how do you get that under the axle?


IMHO, the first step is pull the flat up on ramp you use for leveling until the center of axle is as high as normal. Getting jack, (and my fat self to work the jack) is easy. Only need to jack up enough to pull ramp out, much less jacking. And most important, you can't have the issue of you get the wheel off, but you are not high enough to get the inflated tire back on. If the trailer falls, there is no wheel to catch it, much less room to be under there pumping the jack.

Veebyes
Explorer II
Explorer II
Cummins12V98 wrote:
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


With the tire flat how do you get that under the axle?


Axle is under the spring on mine & 16" wheels so possibly there is the difference. Also use a 12T bottle jack.
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter

2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel

Ham Radio: VP9KL, IRLP node 7995

Veebyes
Explorer II
Explorer II
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


Yup that would work. It is a long way from putting a flat surface under a round surface
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter

2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel

Ham Radio: VP9KL, IRLP node 7995

Cummins12V98
Explorer III
Explorer III
laknox wrote:
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle


With the tire flat how do you get that under the axle?
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Cummins12V98
Explorer III
Explorer III
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


With the tire flat how do you get the jack under the spring?
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

laknox
Nomad
Nomad
Veebyes wrote:
Asking for trouble if you put the jack under the curved U bolt.

Put it under the lowest spring leaf next to the axle. A flat surface not prone to slipping.


Or you could buy, or make, something like THIS.

Lyle
2022 GMC Sierra 3500 HD Denali Crew Cab 4x4 Duramax
B&W OEM Companion & Gooseneck Kit
2017 KZ Durango 1500 D277RLT
1936 John Deere Model A
International Flying Farmers 64 Year Member