Wheel and Tire Question

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olyelr

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Trimming with 37s even on Power Wagons? If I understand correctly, which maybe I don't, at +18 offset or the factory wheel, the Power Wagon's lift is enough to clear without trimming. If I have to trim for 37s regardless, I might as well get the wheel I want and start cutting.
Yes. 37’s just start getting into the fenders at the factory axle placement. That is why aev’s kit moves the front axle forward 1”.
 

jwrich4

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Good morning,
This link may help in your decision process. You can make adjustments from suspension to offset to Trimming or not to degree of "rubbing" or not.

 

Regcabguy

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I'm a Toyo guy after having a nightmare set of BFG's that neither BFG or Discount would help me with. "They zero out on the Hunter balancer including road forcing." The problem was highway speeds where I had vibration. BFG advised me to go to Discount and Discount advised me it was a BFG issue. They refused to go on a road test with me. Stuff happens. I went with Toyo and have had no issues in 20 years now. Tires are your contact with the roadway. Don't go cheap. You have a great vehicle. If you like tires that stick out, you might as well wrap the sides as the paints going to take a hit from road debris.
 

man n black

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First and foremost....IF you plan on running 37s on a 2500 you will AT LEAST need a front level kit. Stay well away from puck lifts if you plan to do any kind of legitimate offroading as the spring bind can become a real problem. You mentioned Carli/Thuren; both make nice products. Personally, I would stay away from Carli's progressive rate front springs as they will wreak havoc on your dynamic alignment.

I run a full Thuren 2.5 kit with the cellulosic bump stops, Thuren sway bar and I'm on 37x12.5s. Not sure what problems you'll have with that Black Rhino wheel size as I am on Method 18x9.5 with a similar dished offset; however I do know that when you run offsets significantly different than factory, YOU WILL GET rubbing on the arms at full lock, and on the fender liner and possibly the plastic front valence attached to the bumper in compression and especially compression with turning. You can mostly mitigate this with a heat gun, small 3 lbs sledgehammer and dremel tool. FYI I am a Cummins engine (heavier in front than you) so YMMV

Thuren recommends Toyo tires for these heavy trucks and like @Regcabguy I've successfully been on them for 10s of thousands of miles. They do throw quite a bit of dirt upon everything though.

Ch
 
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B12buddy

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I appreciate all of the advice but I'm just going to venture off into the unknown. I'm seeing a lot of conflicting information between Power Wagons with the radius arms vs. Power Wagons pre-2019 vs. non-Power Wagon Rams. Each of these groups has different suspension setups from the factory so what works for one may not work for another. I ordered the black rhino armory wheels in 17x9.5 with -6mm offset and 37x12.5R17 BFG K02 AT tires because the Toyo geolanders' sidewall looks like a donut. If there is rubbing, I'll start with the Thuren kit which was in the plans anyway. The AEV kit to move the axle is backordered, but if the tires don't fit, I can put the stocks on or park it until more parts arrive. I should probably start shopping for wider fender flares because this will put the edge of the new tire 2" outside of the stocks...
 

olyelr

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I appreciate all of the advice but I'm just going to venture off into the unknown. I'm seeing a lot of conflicting information between Power Wagons with the radius arms vs. Power Wagons pre-2019 vs. non-Power Wagon Rams. Each of these groups has different suspension setups from the factory so what works for one may not work for another. I ordered the black rhino armory wheels in 17x9.5 with -6mm offset and 37x12.5R17 BFG K02 AT tires because the Toyo geolanders' sidewall looks like a donut. If there is rubbing, I'll start with the Thuren kit which was in the plans anyway. The AEV kit to move the axle is backordered, but if the tires don't fit, I can put the stocks on or park it until more parts arrive. I should probably start shopping for wider fender flares because this will put the edge of the new tire 2" outside of the stocks...
Im not exactly sure what you mean about the radius arms. 2005-2013 power wagons had 4 control arms, while the ‘14 and up have had the same radius arms ever since.
 
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B12buddy

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Sorry for the slow response. TPMS in my area were backordered and then I forgot to buy new lug nuts which cost me another week. A huge thank you to CJC Off Road for their outstanding customer service.

I can confirm that the 17x9.5 +6 Armory Wheels with BFG KO2 AT 37x12.5R17 tires fit with almost no rubbing. There is a very minor rub behind the tire that I've only noticed on the driver's side at 3/4 turn. I haven't had an opportunity to fully articulate the suspension yet, but for a mall crawler, the ride is excellent!
 

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olyelr

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Sorry for the slow response. TPMS in my area were backordered and then I forgot to buy new lug nuts which cost me another week. A huge thank you to CJC Off Road for their outstanding customer service.

I can confirm that the 17x9.5 +6 Armory Wheels with BFG KO2 AT 37x12.5R17 tires fit with almost no rubbing. There is a very minor rub behind the tire that I've only noticed on the driver's side at 3/4 turn. I haven't had an opportunity to fully articulate the suspension yet, but for a mall crawler, the ride is excellent!
Ooooolala! Looks killer!

How about some more pics from different angles, that arnt warped!
 
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B12buddy

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Sorry, I had my Tinder Filter on. Enhance... Enhance...
 

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olyelr

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Nice!

Why the hell they dont they just come that way from the factory is beyond me
 
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B12buddy

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Well...
1. The truck is slow and it feels even slower now. Are there gearing options above a 4.10?
2. I'm assuming this won't help fuel economy.
3. AEV relocates the axel to center of the wheel well better, which would help for 37s. I'm not sure Ram is interested in that engineering and product differentiation.
4. The spare tire area won't fit a 37, so that's a consideration.

I sold the factory wheels and tires for $1500 which means I'm out a total of $1300 for this modification and I'm very happy with that.
 

olyelr

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Well...
1. The truck is slow and it feels even slower now. Are there gearing options above a 4.10?
2. I'm assuming this won't help fuel economy.
3. AEV relocates the axel to center of the wheel well better, which would help for 37s. I'm not sure Ram is interested in that engineering and product differentiation.
4. The spare tire area won't fit a 37, so that's a consideration.

I sold the factory wheels and tires for $1500 which means I'm out a total of $1300 for this modification and I'm very happy with that.
The aev kit for 37’s moves the axle forward 1”. This dosnt center it in the wheel opening persay…just makes 37’s fit without trimming. For the 40” tires and the cut fenders/flares they move it forward 1.5”. What do you mean by you are not sure ram is interested in this?


Up until pre ‘19 you could get 4.88 and 5.13 gears…but i think there has been some very minor axle changes that may not allow that anymore (yet) ? Im not sure on the newer trucks.
 
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B12buddy

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Did you find someone local who bought them? I'll be in the same situation at least for the tires.

Yes. Listed on craigslist for $1800 and took the first local offer I had.


My point with the Ram comments was that if they wanted them to come with 37s, they would do what they need to in order to make that happen instead of leaving it to the aftermarket. You can order a Raptor with 37s from the factory now, maybe Ram should consider it. This is not to start a Ram vs. Ford or PW vs. Raptor argument.
 

62Blazer

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Yes. Listed on craigslist for $1800 and took the first local offer I had.


My point with the Ram comments was that if they wanted them to come with 37s, they would do what they need to in order to make that happen instead of leaving it to the aftermarket. You can order a Raptor with 37s from the factory now, maybe Ram should consider it. This is not to start a Ram vs. Ford or PW vs. Raptor argument.
I was curious on the 37" tires on the Raptor so looked it up..........wow, $5,250 option for basically going from 35's to 37's.....
 

62Blazer

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Just to add my experience with 37's for people that may read this post in the future. I recently installed 37x13.50R17 Nitto Ridge Grapplers on 17x9 +6 rims. This is on a '16 PW with Thuren 1.5" front springs and a 1" rear spacer. Yes, from research this is about the worst case scenario for fitting "37s" because of the tire width and wheel offset.

I could not turn the tires full lock in either direction. At about 3/4 full turn the tires would rub the back of the fender opening and the factory fender flare (the little nub that sticks out at the bottom) pretty hard. When turning left the drivers side back of the tire hit, and when turning right the passenger side would hit, like shown in about 200 YouTube videos. You could force the tires to turn all the way after popping past the plastic, but when turning them back straight it would probably rip off the bottom of the fender flare.

I trimmed off the very bottom lip/nub off the fender flares, cut out the plastic inner fender liner bulge, and for the sheetmetal lip under that piece I cut slices in it and folded in inwards until it was basically flat against rest of the panel. I tried to make it so even if the tire rubs it won't cut up and slice the tire. On the driver's side when turning right the front edge of the tire barely grabbed the plastic inner fender liner. Going forward wasn't an easy, but going in reverse it would catch the edge and make a lot of racket. Basically heated that part up and molded it forwarded a little. I have not fully flexed the truck out off-road to check for clearances, but normal road driving and pulling in and out driveways shows no rubbing.

Previous tires were 35x12.50 Falken MT's on factory wheels. Haven't noticed any significant power differences when empty. This weekend did a 5 hour round trip pulling a SxS on a heavy tandem axle 18' steel deck car hauler. Haven't weighed it but the combo should be about 4,500 lbs. and the SxS is fairly tall (over 6' tall to the top) with a full windshield so there is some wind resistance. The truck would pull 6th gear (top gear) at 70+ mph on flat highway but it didn't take much to kick down to 5th. Finally put it in tow/haul mode which keeps it in 5th anyway and would only want to go to 4th on steeper and longer grades. On the way home it spent more time in 4th but was travelling westbound directly against stiff winds and heavy rain most of the time.
 
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