1993 Coleman Destiny SUA. Tire

MDMann75

Member
Jan 2, 2021
14
Did a SUA swap today, trying to get rid of the 10”tire. Welded new perches and replaced the U bolts, I didn’t flip the axle.

Looking to go to a 12” or 13” radial.
Right now I’m sitting about 3.5 inches higher off the ground. Don’t really need to go much higher. Do you have any recommendations?
 

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MDMann75

Member
Jan 2, 2021
14
Update I ordered a set of ST175/80r13. They are about 24.1 inches over all so from the 205/60r10 which are about 20.5 should be about 2 more lift and it’s a narrower tire so i’ll loose some rolling resistance.

To get that tire in, im going to have to remove the entry step. So im going to order an 18” or 24” single step stepping stop with adjustable legs that I can leave in the camper.

So far I’m really happy with the lift. This is all in preparation for our Labor Day weekend camping trip.
 

jmkay1

2004 Fleetwood/Coleman Utah
Oct 10, 2013
7,865
Northern Virginia
I’m not as familiar with the SUA swap you are talking about but sure wish I knew about it when I had my old 1990 popup. That dang thing was so low to the ground we had to install skid wheels to help preserve the underside from dragging in certain terrain. That two to three inches makes all the difference. Happy camping.
 

MDMann75

Member
Jan 2, 2021
14
It’s moving the axle from on top of the leaf springs to under the leaf springs. I had to weld new perches 180 degrees around the old ones. I’m going from a 20.5 tire to a 24.1 tire. I should have about 5.5-6” total lift.
 
Dec 3, 2017
28
Did a SUA swap today, trying to get rid of the 10”tire. Welded new perches and replaced the U bolts, I didn’t flip the axle.

Looking to go to a 12” or 13” radial.
Right now I’m sitting about 3.5 inches higher off the ground. Don’t really need to go much higher. Do you have any recommendations?
Sounds like you did a manual axle flip. Using a pre-made kit, you merely move the springs to the top of the axle. You don't actually flip the axle. The kit comes with brackets and needed bolts. They only suggest spot welding the bracket to the axle. My flip raised my 07 Fleetwood about 4". I already had 13" wheels so nothing else was needed.
 

PDXpopup

Member
May 28, 2019
23
I went from an old torsion axle and 8” wheels, to leaf springs and 13” wheels with 175/80 D 13 tires. Great upgrade. It sits a lot higher, and my trailer never had steps, so I use a folding step/work stand.
1658168795312.jpeg

One thing I had to do was add a bolt on spare tire carrier to the tongue as the bunk end wouldn’t pull out over the larger spare on the stock carrier on the back of the popup.
 

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MDMann75

Member
Jan 2, 2021
14
Sounds like you did a manual axle flip. Using a pre-made kit, you merely move the springs to the top of the axle. You don't actually flip the axle. The kit comes with brackets and needed bolts. They only suggest spot welding the bracket to the axle. My flip raised my 07 Fleetwood about 4". I already had 13" wheels so nothing else was needed.
In the 4x4 community it’s called a SOA or SUA swap. I have a 1 3/4” axle, so I want able to buy a kit, I bought some perches and new u bolts. I did weld the whole perch. But I took my time and welded with breaks in between so I didn’t distort the metals. I wasn’t lucky enough to have the dexter axle that has a kit for the swap.
 

MDMann75

Member
Jan 2, 2021
14
It’s hard to tell with the lighting. Overcast and drizzling outside. But the new rims and tires came in today. The 175/80r13 are on it, good bye 205/60r10.
I had to remove to entry step and clearance the frame slightly to get a little more space. Loving the look.
 

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Rover76

Member
Sep 22, 2021
20
Sunnyvale, CA/Cushing, ME
Did a SUA swap today, trying to get rid of the 10”tire. Welded new perches and replaced the U bolts, I didn’t flip the axle.

Looking to go to a 12” or 13” radial.
Right now I’m sitting about 3.5 inches higher off the ground. Don’t really need to go much higher. Do you have any recommendations?
I have a question, if you performed an SUA, (Spring Under Axle) wouldn't that have lowered the trailer? Wouldn't it be an SOA (Spring Over Axle)? Not trying to be a jerk. Just asking as I am planning on doing an SOA job to get some height.

I also wish people would stop calling it an axle flip. Unless, of course you did flip the axle. The left wheel hub would now be on the right side and right wheel hub on the left. In a lot of cases, the axle has a bow to it and it cannot be flipped without adverse effects. It should simply be an SOA. Moving the Spring Over the Axle to raise the body of the camper up. The axle itself will still be in the same location in relation to the ground. Unless larger diameter tires are added.

Sorry for the hijack. Again, not trying to be a jerk. Just trying to research so I am educated when it comes time to doing mine.
 

Rover76

Member
Sep 22, 2021
20
Sunnyvale, CA/Cushing, ME
Update I ordered a set of ST175/80r13. They are about 24.1 inches over all so from the 205/60r10 which are about 20.5 should be about 2 more lift and it’s a narrower tire so i’ll loose some rolling resistance.

To get that tire in, im going to have to remove the entry step. So im going to order an 18” or 24” single step stepping stop with adjustable legs that I can leave in the camper.

So far I’m really happy with the lift. This is all in preparation for our Labor Day weekend camping trip.
Looking good by the way! Great job!
 

MDMann75

Member
Jan 2, 2021
14
I have a question, if you performed an SUA, (Spring Under Axle) wouldn't that have lowered the trailer? Wouldn't it be an SOA (Spring Over Axle)? Not trying to be a jerk. Just asking as I am planning on doing an SOA job to get some height.

I also wish people would stop calling it an axle flip. Unless, of course you did flip the axle. The left wheel hub would now be on the right side and right wheel hub on the left. In a lot of cases, the axle has a bow to it and it cannot be flipped without adverse effects. It should simply be an SOA. Moving the Spring Over the Axle to raise the body of the camper up. The axle itself will still be in the same location in relation to the ground. Unless larger diameter tires are added.

Sorry for the hijack. Again, not trying to be a jerk. Just trying to research so I am educated when it comes time to doing mine.
Yes, my phone does weird auto corrects. You are correct. I did a SOA lift.
 

MDMann75

Member
Jan 2, 2021
14
I DO have a welder and I am a CNC programmer/machinist/fabricator. Should be easy? (Famous Last Words...)
Dude what are you waiting for. I’m a hobby welder, but definitely getting better. If I had access to a CNC I’d be unstoppable, you have no excuse!
 




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