Axle width

[greenjeep]

My brother n law and I are hoping to buy a tandem axle trailer together, and I'm trying to figure out how wide I would need it to be with my new axles under my CJ. I know all the numbers, just not sure how to put them all together to get an outside of tire to outside of tire width.

Here's my anticipated setup:
Chevy full width 60/14 - 68" WMS
H1 duel beadlocks - 7" BS (although I may recenter them to 5" BS)
38-40" tires - between 12.50-15" wide.

I guessing I'll be between 80-84" wide. Does that sound about right?

Thanks

 

[Badger]

its really easy to figure out how wide your new track is.there is this thing called a tape measure.if you place or hold one end of the tape on the outside of one tire next take the other end of the tape and pull it tight to the outside of the other tire.once its pulled tight there will be a number that will line up with the outside of the one tire.read that number and that will be the measurement of your new width.

all car hauling trailer are between 80~83 inches depending on how it was built.over tire deck is the only way to get more.

 

[greenjeep]

its really easy to figure out how wide your new track is.there is this thing called a tape measure.if you place or hold one end of the tape on the outside of one tire next take the other end of the tape and pull it tight to the outside of the other tire.once its pulled tight there will be a number that will line up with the outside of the one tire.read that number and that will be the measurement of your new width.

all car hauling trailer are between 80~83 inches depending on how it was built.over tire deck is the only way to get more.

Hey smarta$$, next time read the post before you comment. I don't have all the stuff yet which is why I am guessing what the anticipated width will be.

Also I had a car hauler which was 76" wide, so wrong on that one too genius

Anybody have any useful comments?

 

[Cherokeester]

My brother n law and I are hoping to buy a tandem axle trailer together, and I'm trying to figure out how wide I would need it to be with my new axles under my CJ. I know all the numbers, just not sure how to put them all together to get an outside of tire to outside of tire width.

Here's my anticipated setup:
Chevy full width 60/14 - 68" WMS
H1 duel beadlocks - 7" BS (although I may recenter them to 5" BS)
38-40" tires - between 12.50-15" wide.

I guessing I'll be between 80-84" wide. Does that sound about right?

Thanks

Well Dave, I'll take a stab at it.
Say you have 15" wide tires, thats 30" total width minus 10" of backspacing putting the total to 20" So add that to 68" wms you come up with 88" total. That would be the widest case scenerio the way I see it. Don't know if that is exactly right but pretty close. You could take off 4" with the 7" backspacing putting you at 84".

 

[Badger]

sure it wasn't a utility trailer?the numbers i shot out are generalized numbers,on average most car trailer will be 80 to 83 inches.as for the what your width will be chances are you aren't running anything new from what anybody else ran.so full widths with like 3~5" of back spacing will be right in the range of the trailer.worst case scenario it will be just slightly over.get a good trailer with drive over fenders

 

[DToy]

To give you an idea, I have a dually Dana 60 that I am putting under my 4Runner. The wms-wms on it is 75". With my H1 beadlocks (not re-centered) and 42" TSL's the overall width from outside of tire to outside of tire is 89".

So yours with the 68" wms-wms and your wheels not re-centered should put you around 82" - 83". I am in the market for a new trailer also because mine is 76" wide, just like yours. I am looking for a trailer that is 8' wide or close to it - which leaves you with a deck-over as the only option unless you get one with drive-over fenders and you don't mind your tires hanging off each side a few inches.

 

[suisuki]

x2

most car/equipment haulers are 96" if the deck is over the tires, or 83" if it has fenders, this is 'cause most 3500#, 5200#,& 7000# trailer axles have 80" spring centers. The smaller 2500# trailer axles (commonly found under your 5000# gvwr utility trailers @76" width) have 72"-74" spring centers.

Depending on what your looking to spend the 96" over-tire-deck equipment hauler would be nice but, you'll find they are usually 10,000# gvwr or more and more $$$$$, which is why most go with the 83" deck 7000# gvwr car hauler with drive over or removable fenders. .

on a side note some people feel, the additional hight of the deck on the 96" models puts your rig higher in turn raising your trailers center of gravity making it harder to feel comfortable doing a hundred thru the twistys.

just some thoughts.

also when I built my trailer I didn't want the high deck (mine is about 15" deck hight) but I did want the 96" width (so I could get 2 fourwheelers side by side) so I built the trailer with driver over fenders and 83" width but added double stake pockets so I could later add on some slide in steel extensions that bolt on for when I want to haul the crawler and 2 bikes up front.

 

[yellowbronco]

Also I had a car hauler which was 76" wide

I just aqquirred a small flatbed trailer that is 76" wide, My gooseneck is 83".

x2

most car/equipment haulers are 96" if the deck is over the tires, or 83" if it has fenders, this is 'cause most 3500#, 5200#,& 7000# trailer axles have 80" spring centers. The smaller 2500# trailer axles (commonly found under your 5000# gvwr utility trailers @76" width) have 72"-74" spring centers.

Depending on what your looking to spend the 96" over-tire-deck equipment hauler would be nice but, you'll find they are usually 10,000# gvwr or more and more $$$$$, which is why most go with the 83" deck 7000# gvwr car hauler with drive over or removable fenders. .

on a side note some people feel, the additional hight of the deck on the 96" models puts your rig higher in turn raising your trailers center of gravity making it harder to feel comfortable doing a hundred thru the twistys.

just some thoughts.

also when I built my trailer I didn't want the high deck (mine is about 15" deck hight) but I did want the 96" width (so I could get 2 fourwheelers side by side) so I built the trailer with driver over fenders and 83" width but added double stake pockets so I could later add on some slide in steel extensions that bolt on for when I want to haul the crawler and 2 bikes up front.

Good info
Are some 3500 lb axles on 72-74" centers? I ask because I just picked up a trailer that is supposed to have 3500 lb axles, but the deck is 76". Just curious.










Sorry for the Hi-Jack Dave!!

 

[greenjeep]

Thanks for the meaningful comments. How hard/practical would it be to add drive over fenders to a "normal" trailer?

 

[Brad J]

Thanks for the meaningful comments. How hard/practical would it be to add drive over fenders to a "normal" trailer?

It was a little over $100(?) for the metal needed for mine. I did have some scrap metal lying around though.

 

[Badger]

i made mine drive over by adding some DOM along the inside edge of the fender

normally i could squeeze between them but every once in a while i wold have to use them to straighten up.

 

[chadschoon]

im 89" rear and 86" front. I also just had to do a bunch of tube on my trailer as well.

 

[suisuki]

Are some 3500 lb axles on 72-74" centers? I ask because I just picked up a trailer that is supposed to have 3500 lb axles, but the deck is 76". Just curious.

yes some are

 

[suisuki]

BTW NICE drive overs Badger

The tube drive-overs are my favorite and I would have done mine like that if I wasn't building my fenders from scratch. On the outside mine just look like normal fenders.

Also imo the cheapest way to have a drive-over set up is to make the fenders the trailer comes with removable, kinda sucks to have to fiddle with them every time but cheap to do(costly in time though), that said if you have acsses to a bender the tube style looks great and will only cost you about $30-$50, depending on your choice of material.

 

[greenjeep]

OK, so check my math.

Current: 61" wms, 10" wide rims w/3.75 bs, 12.50" wide tire
So, 61 + (2 * (10 - 3.75)) + (2 * ((12.5 - 10)/2)) = 76"
WMS + (rim width - bs * 2 rims) + (tire width - rim width to get how far the tire sticks out past the rim divide by 2 to get extra width on just the outside edge * 2 tires) = outer edge to outer edge

Anticipated: 68" wms, 9.75" wide H1 beadlocks w/7" bs, 14.50" wide SX

68 + (2 * (9.75 - 7)) + (2 * ((14.5 - 9.75)/2)) = 78.25"

Sounds like my new total width will only be 2 1/4" wider than my current set up. Right?

 

[mbryson]

OK, so check my math.

Current: 61" wms, 10" wide rims w/3.75 bs, 12.50" wide tire
So, 61 + (2 * (10 - 3.75)) + (2 * ((12.5 - 10)/2)) = 76"
WMS + (rim width - bs * 2 rims) + (tire width - rim width to get how far the tire sticks out past the rim divide by 2 to get extra width on just the outside edge * 2 tires) = outer edge to outer edge

Anticipated: 68" wms, 9.75" wide H1 beadlocks w/7" bs, 14.50" wide SX

68 + (2 * (9.75 - 7)) + (2 * ((14.5 - 9.75)/2)) = 78.25"

Sounds like my new total width will only be 2 1/4" wider than my current set up. Right?

That's pretty close to what I was when we ran Coyote Canyon last spring. I'm probably about 4" wider now and can JUST BARELY fit on my trailer between the fenders. I'm about 83" or so. (H2s and Toyo 13.50)

 

[Cody]

not that it matters, but I thought my buggy worked a lot better at 78" vs. 81.5" in width.

 

[ut4x4Bronco]

I measured my trailer and it is 100 inches+ and my axel plus tires are 88 inches plus. My driver over fenders are rated at 7000 pounts each. I bought my trailer at lone peak in Lehi.