Hey folks..

Id like to run the same wheels on my truck as I do on my trailer in order to only carry one spare, and have thrown around a few ideas.. But since I'm running 17" now, I need to buy new rims anyway.. So why not just buy centered 16" trailer rims for the truck and trailer so I don't run into back spacing issues trying to mount truck wheels on the trailer..

Trailer rims are 16x6 mostly with a few 6.5" and 7" wide. The stock 97 2500 used a 16x 6.5 with 4.5" of back space.. Does that mean a truck tire on centered trailer rim would stick out about 1 1/4" further? And will I have any interchange issues with hub centric trailer rims vs the lug centric's on the truck?

Does this sound feasible, also considering most trailer rims are 6" wide?

Thanks!

 

I think it's a bad idea.
As you mentioned hub centric vs lug centric opens a can of worms. (Especially for trailer rims with bores for flat lugnuts on the truck with conical lugnuts)
Then, with a 6" wide rim you will be limited to 205mm wide tires if you want a decent wear pattern, and you'll be hard pressed to find something with a good load rating for your truck.

The center of the tire moving outwards 1 1/4" will have some negative effects, the bearings and balljoints will have a harder time.

Depending on how heavy your trailer is, there can be a big discrepancy between the load on the wheel for trailer and truck. The "compromise" you'd need to go may get you too soft tires on the truck, and too hard on the trailer.
And trailer tires are "specialists" for lateral force and low rolling resistance, not so much for acceleration and braking as a truck tire should be.

 

A zero-offset trailer wheel would stick out a little on the Dodge. Many trailer wheels are lug centric with tapered nuts just like the Dodge. (Many, but not all.) IIRC, the bore needs to be at least 4.77" ish to fit the Dodge.

235/85R16 should be an easy tire to run... although a proper trailer service tire is typically a 235/80R16.

 

Here's a nice 16x7 rim, and if you click through the pictures, there's a guys review that says he's running them on his F350..

https://www.etrailer.com/Trailer-Tir...d/LHJM513.html

I would rather have a 16x7 steel trailer rim though, and I noticed a few new trailer rims had a 1/2" + offset. which would bring the wheel back in halfway to where it was..
"Dexter Axle bearing sets are designed for wheels with 0 to 1/2" inset." so I guess 1/2" positive is ok.

As far as tire size, I want to run some ltx a/t 2's 245/75/16's because I have some. But I'm wondering,, whats the most common LT tire size down in south america and found this. Looks like 245/75/16 were popular in 2018

I thought most 16" trailer rims were hubcentric but glad to hear I'm wrong.

 

How about some 92-97 f250/350 wheels? They're closer to 0 offset than anything dodge and they're 16x7.

I think ford ran the wheel for many more years in the E series.

 

Well, over here we often just put truck axles (or hubs) under the trailer in question if we want to have compatible wheels.

 

Thanks.. As long as the wheel runs centered with no more than 1/2" positive.. Do you know the ford offset?

I wonder if I use a spacer with truck rims on the trailer, if I could get centered or no more than 1/2" positive? But then I wonder how common 17" tires are in south america..

Decisions decisions..

 

 

Nice.. Only 1/4" of positive offset part #29576 here and here. Thanks u2slow.

I want to circle back for a minute and consider adapters or spacers on the trailer, so that I could run truck 17'x8's because 17's outsold 16's and I have 265/70/17s on the dodge. Before I can do that I need to figure out the offset for the third gen 17" rims and determine if spacers are available for the given offset.

 

My set was 17x7.5", had ~6" backspace and a used them with a 2" spacer to bring it down to 4"... and then they fit my old W250 nicely.

1.5" spacers are common too.

 

I thought I had 17x8 because I read it on a forum but I stand corrected.. And I cant seem to wrap my head around a 7 1/2 wide rim with 6" of back space..

I calculate 2 1/4" of offset. So 2" spacers would give me 1/4" of positive offset. "Dexter Axle bearing sets are designed for wheels with 0 to 1/2" inset."

Is my math correct? Is this the approach you would take rather than eight 16" steel trailer rims u2slow?

 

I had plain/base steels. I think some of the deluxe wheels are 17x8. I don't know if their backspace differs.

It's either buy spacers for the trailer, or have better 'stance' on the truck. How many axles is the trailer?

I still buy 16" tires. I have no rides that require 17". In fact, I gave up my 17's to a buddy with a newer dodge. I do have '01-02ish 16x8"s I might run. Similar backspace to the 17's.

Edit: when you calculate backspace, a rim is about 1" wider than its size. So an 8" wheel measures 9" for backspace purposes.

 

I wondered about the lip thickness, but it is cured with the 1 1/2" spacer..

I'll run Tandem de-leafed 7K axles under a 7x16 cargo that could weigh 8K max.

I'm not thrilled about all the mud the side of the truck would get with the wider stance..

My builder says bring him the wheels is why I need to decide. I could also bring him the axles.

Yeah, I don't know but assume 17's are just a little more stout than the 15's that size trailer usually has, but that's my goal. 17's might add some rolling resistance though and the wheels wells will have to be huge.

 

If you're using 7k# axles at only 4k# max capacity each, the offset matters less.

 

True, but I'm using 7k axles because in the event I put most of the weight of the trailer on one axle, it doesn't fail.

So there's even a third scenario to my issue.

A) Run 16" centered rims on the truck and trailer and have the truck tire's stick out a bit..

B) Keep the 17" rims, and buy 4 identical rims for the trailer and run spacers to achieve 0 offset

C) OR run the 235/85/16 XPS Ribs on the trailer because the outer diameter is the same as the 265/70/17's on the truck. And I could use a trailer spare for the truck when needed.