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Relegate
05-22-2015, 07:37 PM
I've been reading through a lot of old posts. From what I can gather the 3500 series bolt circle and offset are the same from, say, a 2004 T1N through the new vehicles- 6-bolt.

I have a 2005 3500 DW and I want to put a larger wheel with taller (say, 2008 spec) tires on it. The vehicle now has stock-sized 195/70/15's that are worn out. They are snow tires and we do cross country highway trips support a bicycle racing program.

I am looking for a taller tire. We don't load the vehicle with heavy items - 5 passengers at the most with 7 bicycles (weighing 17lbs each), some bags, EZUPs, bike tools, etc. I need more clearance because the events are usually in a park that is more remote. I am also looking to lengthen the gearing to bring the RPM's down on the highway. I am willing to trade off the line acceleration.

Who has experience going from the stock 15's to the 16's? The tire size on the 2008+ is much taller - 215/85/16 which is about 4.5" taller (30" Diameter vs 25.7"). This would definitely give us the height we need where the current wheels are low and we are running much higher in the RPMs in the highway than I'd like.

What aftermarket tires are you liking? What load rating and size?

TIA! :cheers:

NelsonSprinter
05-23-2015, 04:20 AM
many are happy with the 29"D x 15" 7R15 yokohamas http://sprinter-source.com/forum/showthread.php?t=10388&highlight=7r15

Relegate
05-23-2015, 05:20 PM
I really appreciate that link! My issue with the RY215's is they won't provide enough traction for some of the situations we find ourself in zig-zagging through the midwest and mountain states in the winter. I need and all-season I suppose, but that size is right on the money.

NelsonSprinter
05-23-2015, 06:12 PM
Yoko y742s 7r15 is much more aggressive, noisy, and gives slightly poorer fuel efficiency
but in that size range http://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=Y742S&partnum=700R5742S&vehicleSearch=false&fromCompare1=yes

Cole
05-24-2015, 03:50 AM
I run 2008+ wheels and 235/85/16s BFG ATs on my 2004 3500.

What is it exactly you want to know?

http://images.tapatalk-cdn.com/15/05/23/16a442439fd31ad5e5c432da3620507a.jpg

Relegate
05-25-2015, 04:47 PM
I run 2008+ wheels and 235/85/16s BFG ATs on my 2004 3500.

What is it exactly you want to know?


As I get into this (and of course, I need to replace the tires in 2 weeks for a trip from NorCal to Montana, Colorado and back for MTB racing) I realize there are simple things I don't know about Sprinters.

For example:
-On the 3500's, are all 6 wheels the same? (shopping for wheels on eBay now)
http://www.ebay.com/itm/201340391614?_trksid=p2057872.m2750.l2649&ssPageName=STRK%3AMEBIDX%3AIT

-What's the biggest tire that is advisable? (I am surprised to see 235's fit without rubbing in the rear... do you run a spacer?) A 29-30" overall tire height would be such a huge improvement.

The reason I want to go 16" over 15" is tire choices seem very good. I realize I will need 7 wheels and tires? (6 plus spare?).

This is my first Dually of anything, and I pretty much bought it in August 2014, quick and dirty outfitted it, and 27k miles later its time to make some updates/repairs/upgrades.

obie
05-25-2015, 05:22 PM
Yes, all 6 the same.

Cole
05-25-2015, 09:56 PM
For example:
-On the 3500's, are all 6 wheels the same?

Yes. All 7 wheels are the same.



-What's the biggest tire that is advisable? (I am surprised to see 235's fit without rubbing in the rear... do you run a spacer?) A 29-30" overall tire height would be such a huge improvement.

Well, that is debatable on this forum as many worship Mother Mercedes and if it's not spelled out exactly what size and brand to use they think you are the devil:lol:

235 is the widest you can go and still have a decent gap between the rear wheels so that they don't rub together while aired down or under heavy loads.

Mine are about 32" tall. Nearly 6" taller than the stock wheels on the dually. But only about 2" taller than the stock wheels on a 2500. As you have already found out the rpm is way too high on the freeway with the stock tiny tires. That and these things look goofy with them.

Mine required removing the ugly mud flaps and doing very minor triming of the front wheel arch. (1/3" at the very bottom, lots of room to trim off the extra sheet metal and not change the look of the van)

The rear self clearanced about 1/8" off the inner lip of the plastic fender flare. Mine doesn't rub now even with a 7k lbs trailer behind it.

Mine is an odd dually since it has 3:73 axle ratios instead of the far more common 4:18s. Even with 3:73s it pulls 80mph on our high mountian passes here in Colorado.(I've got a Green Diesel Engineering tune). My average mpg is about 22.

It's slightly harder to stop with the big tires but nowhere near a problem.

If I had th choice is prefer the 4:18 gear set. I'm still trying to find someone to trade me rear axles as my 3:73s would do much better on the freeway for someone with stock sized tires:thumbup:


I realize I will need 7 wheels and tires? (6 plus spare?).



Another heavily debated topic here. My 235/85/16s are too large to fit in the undercarriage spare tire carrier. I only run 6 wheels/tires. Each one of my tires run individually is rated to carry more than the full load of my van. So I can simply use one of my dual rear wheels as a spare. Meaning I would need to have THREE flat tires before actually needing a true spare tire from under the van.

Race Mountian bikes? Know JHK and HI?

Fletch F. Fletch
05-28-2015, 01:11 AM
sorry for the noob question but are 2008+ 16" wheels 16x6 or 16x5.5?

sailquik
05-28-2015, 01:34 AM
Depends if you are looking @ 3 series/ 2500's (16jx6.5 OEM single steel wheels) or 5 series 3500's (16J x 5.5 OEM Steel wheels that work as duals).
Roger

towboatbill
05-28-2015, 02:53 PM
+1 on sailquik's advice.

I followed it last fall because of the lack of suitable 15 inch all-weather tires and am pleased with the results.

A not-so-brief rundown.

(7) Very slightly used 5-1/2 J x 16 H2 HMA125 wheels from here:

http://www.eurocampers.com/Used-16-Steel-Wheels-for-2007--2015-Sprinter-3500-18-round-hole-pattern_p_173.html

Don't forget a bag of the spezial trick lugnuts -- they're delicious!

(7) Nokian Rotiiva AT LT225/75R16E from here:

http://www.tiresbyweb.com/m-108-nokian-tires.aspx?pagenum=2

I'm partial to the Nokian all-weather tires, as fast as seasons change at my age I'm not gonna change six tires twice a year, and the winter-only HAKKAPELIITTA's (in Finnish: "Chop Their Heads Off"), while awesome on ice/snow, will really wear fast on hot summer days in my experience.

Nokian is the only outfit I've found that makes a year-round tire that merits the Mountain-Snowflake Severe Service symbol. I ran two sets of the 15" NOKIAN WR C VAN year-round but it's D rated and the longevity was not there -- 'course my truck weighs in at 9200 pounds....

Now with the 16" wheels I have the choice of running either the WR C CARGO or the ROTIIVA AT LT, both E rated in the 225/75R16 size.

I chose the Rotiivas and haven't looked back. The rev/mile is reduced from 806 to 710. I bought a ScanGuage and found I needed a 0.8 correction to the speed and mileage. I have a DAD and thought I'd be able to correct the speedo in there as 195/70R15, 225/70R15, and LT225/75R16 are the supported sizes, but nothing changes to the speedo error.

I have a GDE ECO tune and am sure the added snuss made the conversion much more satisfactory. Wheel wells are pleasingly full now and no interferance found. DRW gap is as good, maybe better, than with the 15s. Clearance between the inside dually and the spring is the most critical but at 60 psi its been OK. I read on some tire site that putting a tire on a rim narrower than its rating causes the entire sidewall to be narrower, counter-intuitive perhaps but I think that must apply here.

I was pleased with the pre-sale customer service of both suppliers as well as the fast shipping : both orders were on the way the day I placed them.

I agonized over this project way too long, in the end it was Roger's admonition:
"Just go for it..... you will be happy that you did."
I did and I am happier than a clam.

Cole
05-28-2015, 03:54 PM
I'm confused? Did I miss the advice you are giving Saliquik a +1 for? Was it deleted? I only see him posting a few rim size facts.

IT Sprinter
05-30-2015, 07:25 PM
I have a 2005 3500 that I use for work with heavy loads. I'm considering going for the larger size for a few reasons, one of which is how goofy it looks with the small wheels. For those that have done the change, do you have pics to share? I saw one in earlier post but was looking for more :) Also, any advice on tires? Most of this post was focused on winter tires for mountain states, but here in GA i'm more concerned with hot roads in the middle of summer causing wear. Thanks!

towboatbill
05-31-2015, 02:27 PM
Here's a couple I took last night before it got too dark...or the beer flowed too generously -- can't recall which. I'll get some more for you later today.
67974
67975

towboatbill
05-31-2015, 08:14 PM
I wanted to get some measurements so lifted the bed for these pix:
67978
67979

Here's that close pass between the spring and inside tire:
67980
67981

more to follow

towboatbill
05-31-2015, 08:25 PM
The kissin' distance:
67982
67983

Tire to fender forward:
67984

and aft:
67985


more to follow

towboatbill
05-31-2015, 08:45 PM
Finally
Notice how the cab-chassis frame is simply two van frames welded together. The angle scabbed on top was recommended by the Omaha Hoist engineers to shore up this noodle. Worked good to catch the broken end of the main leaf after it escaped from under the u-bolt plate and headed for the moon!!
67986

A couple views of the top of the fuel tank:
67987
67988

that's all

IT Sprinter
06-01-2015, 12:31 PM
Towboatbill,
Thanks! The pictures are great, especially showing the gap distances I can expect from the larger tires. The ones I choose will probably have less of a "winter tread", so I expect the clearances to be even greater (hopefully). Your posts are very helpful for my decision making! :)

towboatbill
06-02-2015, 11:51 AM
You bet, glad they helped, that clearance was the one piece of info I never found hard numbers for in the many posts I read on the subject. Wish I could find my figures for the original 15"s.

The stock 15s have an offset of 115 mm while the 16" takeoffs from Eurocampers are 125 mm, so you gain space between the tires, but its at the expense of bringing the inside tire 10 mm closer to the spring. You can measure that distance now and just see how it looks if it were 10 mm smaller, though I guess that will only prove accurate if your new tires are the same profile.

I believe I've read on here that the 2005 and later vans, but not cab-chassis, have a wider rear axe which should buy you some breathing room -- if I'm correct that is!

Good luck, you'll be glad you did it.

Catcomexico
08-15-2016, 06:27 PM
Hey Cole,
So you are using the 5.5 x 16 steel 18-hole rims with your 235/85r16 rubber? BFG At's right? I just got a 2006 3500 sprinter that I'm scheduled to get the same lift you did, two weeks from now in Atascadero. The Van Compass lift. I have a full set of 5.5 x 16 rims from eBay, and the correct lug nuts. Am I good to go with those rims? Thank you soooo very much. Chris

Cole
08-15-2016, 06:33 PM
Hey Cole,
So you are using the 5.5 x 16 steel 18-hole rims with your 235/85r16 rubber? BFG At's right? I just got a 2006 3500 sprinter that I'm scheduled to get the same lift you did, two weeks from now in Atascadero. The Van Compass lift. I have a full set of 5.5 x 16 rims from eBay, and the correct lug nuts. Am I good to go with those rims? Thank you soooo very much. Chris

Yep, that sounds like my set up. So it should work. Post pics!!