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Old 12-29-2018, 01:47 AM   #21
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THOR #1658
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Originally Posted by wingnut60 View Post
Ryan, what I was asking about--if the steel wheels can only be used at the inner rears, what about the steel spare? It has to be able to be used at any position?
Joe
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Originally Posted by Cummins12V98 View Post
I have no FACTS other then my memory but a steel wheel Dually can have any wheel placed at any location including the spare.
But if you put the spare on, it does not have a TPMS on/in it. So in order to see the pressure you would need to swap the tire from the rim. The spare is tire is the same as all of the other tires minus the TPMS sensor.

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Old 12-29-2018, 01:51 AM   #22
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Originally Posted by wingnut60 View Post
Ryan, what I was asking about--if the steel wheels can only be used at the inner rears, what about the steel spare? It has to be able to be used at any position?
Joe
Joe,
If you have the alloy rim option the front and outer rears are alloy rims and the inner rears should be steel rims.
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Old 12-29-2018, 02:52 AM   #23
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Yes, they are. What I was trying to say, is, the steel wheel will fit in any position, as will the alloys. You just may not have the polished side out. It was your mention earlier that the steel wheel should only be on the rear inner that I was wondering about...sorry for the confusion. And the 450s do not have any TPMS yet that I know of. Rams and GMs have the TPMS on the 17s, I don't have them at all--have to use after-market.
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Old 12-29-2018, 05:28 AM   #24
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THOR #1658
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Originally Posted by wingnut60 View Post
Yes, they are. What I was trying to say, is, the steel wheel will fit in any position, as will the alloys. You just may not have the polished side out. It was your mention earlier that the steel wheel should only be on the rear inner that I was wondering about...sorry for the confusion. And the 450s do not have any TPMS yet that I know of. Rams and GMs have the TPMS on the 17s, I don't have them at all--have to use after-market.
Gotcha. I am surprised that the Fords do not have a TPS monitoring system. Ram started in 2013. It does not alert you to low pressure but you are able to go through the menu function on the dash and see what they are at any time. I check mine every hour of driving. Two down clicks and I see them.
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Old 12-29-2018, 07:10 PM   #25
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Yeah, no factory TPMS on 450s--but the TST is working just fine. Believe the 350 duallys have the system.
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Old 12-30-2018, 02:42 PM   #26
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I look at at not having the TPMS factory installed as a bonus.

I use a TST kit and have the alarms set at my interest points opposed to what Ford wants me to have.

I don't run max pressure in the rear tires year round.

In tow season, they get the label pressure, 60
Off season I drop the pressure, usually to 55

As for rotating my tires. I see no reason personally to get the exact wear on all 6 tires. That would just mean I have to replace a;; 6 at the same time.

My first set of rear tires went 74-75K. Only rotated once (side to side) and that was only because I was doing the rear pads and rotors.

Fronts were changed around 48K IIRC.

The Ford steel spare is capable of any postion.
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Old 12-30-2018, 03:29 PM   #27
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Porthole you should really look at your weight/inflation chart for YOUR tires. 35psi is more than enough air for running BobTail in the rears.

Am I correct you only made it to 35k on the fronts? If you are not I highly suggest running 80 all tie time. Are you getting outside edge stepping?
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Old 12-30-2018, 04:21 PM   #28
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27 months ago I put new Michelins on my Duramax Dually.......25K later the fronts are wearing on the corners, not bad but noticeably....although evenly. The rears still look new. Costco includes free rotation and will be mounting/remounting my tires. Don't care much how they do it, just put the fronts on the rear.
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Old 12-30-2018, 04:23 PM   #29
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Originally Posted by Cummins12V98 View Post
Porthole you should really look at your weight/inflation chart for YOUR tires. 35psi is more than enough air for running BobTail in the rears.

Am I correct you only made it to 35k on the fronts? If you are not I highly suggest running 80 all tie time. Are you getting outside edge stepping?
I corrected it the number, it was at 48K for the fronts

78K for the front and rears (bought a set of new take offs)

Both front and rear tire PSI is based on my observations of tire wear.

Year round, the most even tire wear on this truck for the front is 75psi

Rears are 55/60.
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Old 12-30-2018, 04:50 PM   #30
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Will be interesting to see how Costo actually does the rotation--just side to side or the moves that require dismounting the tires.
Moving only side x side won't change the front wear...
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Old 12-30-2018, 05:00 PM   #31
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"Moving only side x side won't change the front wear..."

This is why the tires need to be removed from the rims leaving the wheels in the same location and moving the tires side to side with rotation remaining the same. Insides will now be on the outside.
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Old 12-30-2018, 05:02 PM   #32
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27 months ago I put new Michelins on my Duramax Dually.......25K later the fronts are wearing on the corners, not bad but noticeably....although evenly. The rears still look new. Costco includes free rotation and will be mounting/remounting my tires. Don't care much how they do it, just put the fronts on the rear.

Weigh your truck loaded, add 10 psi to front weights and 5 psi to the rears using the weight/inflation chart for YOUR tires.

MOST people WAYYYYY under inflate the front tires. Also they WAYYYYY overinflated the rears.
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Old 12-30-2018, 05:03 PM   #33
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Ron,
My experience with 4x4s is that the wear will be on both outer ribs and won't improve going to the other side no matter the direction. If there is stepping/cupping on the outer ribs, then shocks/alignment may be the problem.
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Old 12-30-2018, 05:11 PM   #34
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Ron,
My experience with 4x4s is that the wear will be on both outer ribs and won't improve going to the other side no matter the direction. If there is stepping/cupping on the outer ribs, then shocks/alignment may be the problem.

Toe is the culprit for stepping on the outside. As I have mentioned get the toe set to 1/64-1/32. You will ALWAYS get some outer edge wear on the fronts. By moving side to side with rotation the same this evens this small amount out.

Factory toe setting on the 4th gen RAM's is 1/4, this is to keep the truck tracking straight I assume. My alignment guy of over 30 years dialed me in on this with my last Dually.

Another thing to do is dump the factory shocks right out of the box for a set of Bilstein's.
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Old 12-30-2018, 05:12 PM   #35
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27 months ago I put new Michelins on my Duramax Dually.......25K later the fronts are wearing on the corners, not bad but noticeably....although evenly. The rears still look new. Costco includes free rotation and will be mounting/remounting my tires. Don't care much how they do it, just put the fronts on the rear.
Curious what you run your fronts at??? I'm betting 65 or so.
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Old 12-30-2018, 06:34 PM   #36
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Originally Posted by Cummins12V98 View Post
Toe is the culprit for stepping on the outside. As I have mentioned get the toe set to 1/64-1/32. You will ALWAYS get some outer edge wear on the fronts. By moving side to side with rotation the same this evens this small amount out.

Factory toe setting on the 4th gen RAM's is 1/4, this is to keep the truck tracking straight I assume. My alignment guy of over 30 years dialed me in on this with my last Dually.

Another thing to do is dump the factory shocks right out of the box for a set of Bilstein's.
The shocks will not give you outer tire wear Ron. I still have the OE shocks on mine. You would think with your rear air ride, that would be the best ride.
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Old 12-30-2018, 06:47 PM   #37
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The shocks will not give you outer tire wear Ron. I still have the OE shocks on mine. You would think with your rear air ride, that would be the best ride.
I was not comparing outside edge "stepping" to shock quality. I mentioned the shocks just because most OE are POS.


Our RAM's do come with good shocks that are US Made Nitrogen. BUT most trucks including my 11 Dually came with POS Brazilian made shocks. Bilstein does not make a shock for the rear air ride and my ride is good with the OE. I did replace the fronts when the truck was nearly new with Bilstein 4600's and they are a better shock than OE as they do a better job of controlling after shock when hitting jarring road conditions.
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Old 01-02-2019, 09:49 PM   #38
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I know this was about DRW, but timing was mentioned. I have Discount Tire rotate my SRW F350 every 5000 miles. I also rotate the trailer's wheels about the same time, but my wife and I accomplish that task.
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Old 01-03-2019, 03:48 AM   #39
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I know this was about DRW, but timing was mentioned. I have Discount Tire rotate my SRW F350 every 5000 miles. I also rotate the trailer's wheels about the same time, but my wife and I accomplish that task.
My Dually has 3 different wheels on one side......you have only one wheel in all four positions. Mine will need to be unmounted and remounted.
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Old 01-03-2019, 09:24 PM   #40
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And update for you Ford buffs, my 2019 Ford F-450 4x4 dually has a factory TPMS system. It monitors the tire pressure only, no Temp monitoring. I still mounted my TST sensors on the truck so I can monitor both pressure and temperature.

Ford is kind of slow at updating technology stuff. Remember how long it took them to update the Electric/Hydraulic brake controller. I think about 4-5 years???
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