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Discussion Starter #1
Hello again everyone, I'm planning on ordering me 17 Ram 2500 here today or tomorrow and cannot wait to be a new truck owner. I have always been a Dodge/Ram guy and this will be my first new truck. The only thing I would change about them is the fact that they run Unitized wheel bearings with no locking hubs. I plan on keeping my truck until it is completely worn down and no longer drive-able, so the savings over time would offset the cost of the kit. I was looking into the DynaTrac Free-Spin hub kit to replace the unitized bearings on the front of my future 2500. I've herd great things about DynaTrac and the fact that everything is American made is a huge plus as well as having less wear and tear on the U-Joints, front axle and drive shaft. I was wondering if anyone has installed their kit on their own truck and wanted to see how they liked it. Thanks in advance guys, heres the kit in question:

https://www.dynatrac.com/free-spin-kits/dodge-truck/free-spin-kit-2012-2017-dodge-2500-and-3500-with-dynaloc-hubs.html
 

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Hello again everyone, I'm planning on ordering me 17 Ram 2500 here today or tomorrow and cannot wait to be a new truck owner. I have always been a Dodge/Ram guy and this will be my first new truck. The only thing I would change about them is the fact that they run Unitized wheel bearings with no locking hubs. I plan on keeping my truck until it is completely worn down and no longer drive-able, so the savings over time would offset the cost of the kit. I was looking into the DynaTrac Free-Spin hub kit to replace the unitized bearings on the front of my future 2500. I've herd great things about DynaTrac and the fact that everything is American made is a huge plus as well as having less wear and tear on the U-Joints, front axle and drive shaft. I was wondering if anyone has installed their kit on their own truck and wanted to see how they liked it. Thanks in advance guys, heres the kit in question:

https://www.dynatrac.com/free-spin-kits/dodge-truck/free-spin-kit-2012-2017-dodge-2500-and-3500-with-dynaloc-hubs.html
Alpine.....you bring up a very timely question that I am trying to answer as well. I too have a '17 2500 on order and also considering putting a Dnyatrac free spin kit on it. I obviously like their product because my current truck (04.5) has their free spin kit on it and has been perfect with no problems. BUT the '17's have the front axle disconnect (CAD). In trying to determine if there is any benefit in putting a free spin kit on a '17, I did much research here.

I found that the consensus of the posts/opinions on here were in favor of NOT going for a free spin kit. While the CAD system on the '17's are not the same as free spin hubs, the CAD system unlocks one side (passenger I believe). The remaining u-joints that spin on the axle do so UNLOADED. So very little wear and friction there. And according to the posts I read on the new trucks with the CAD, the front driveshaft does not turn as well. From what I can tell the only true benefit left is the better wheel bearings the Dynatrac's have, and even at that, the factory unit has no problem in going 100K miles.
 

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Would there will be the benefit of backing up trailers in low range with the hubs unlocked?
 

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Would there will be the benefit of backing up trailers in low range with the hubs unlocked?
While I do not tow, the benefit you describe is available with a free spin kit.
 

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Discussion Starter #5
Alpine.....you bring up a very timely question that I am trying to answer as well. I too have a '17 2500 on order and also considering putting a Dnyatrac free spin kit on it. I obviously like their product because my current truck (04.5) has their free spin kit on it and has been perfect with no problems. BUT the '17's have the front axle disconnect (CAD). In trying to determine if there is any benefit in putting a free spin kit on a '17, I did much research here.

I found that the consensus of the posts/opinions on here were in favor of NOT going for a free spin kit. While the CAD system on the '17's are not the same as free spin hubs, the CAD system unlocks one side (passenger I believe). The remaining u-joints that spin on the axle do so UNLOADED. So very little wear and friction there. And according to the posts I read on the new trucks with the CAD, the front driveshaft does not turn as well. From what I can tell the only true benefit left is the better wheel bearings the Dynatrac's have, and even at that, the factory unit has no problem in going 100K miles.
That is very dissapointing to me to find that out. I have hated the CAD system since Chrysler started implimenting it on their vehicles back in the early 80's. I can only hope that the new system is electronic and not controlled by Vacuum like the previous systems were. There is nothing more annoying while trying to plow than crawling under the truck to smack the solenoid/clean the vacuum hose so 4wd would lock in. Now knowing that it might not be worth actually installing if that is the case. The only benefit would be as you said, the wheel bearings are easier/cheaper to service. If I can achieve 100,000 miles out of the unitized bearing on the truck then I don't see how the kit would be worth it unless I ran hot shots or used the truck for long hauls as a business.

Would there will be the benefit of backing up trailers in low range with the hubs unlocked?
The only benefit you would get from that would be essentially imitating a 2WD Low situation. Essentially you would get the torque multiplication of 4-Low but with the hubs unlocked only the rear wheels would turn (as would the front drive shaft, ring, pinion and axle shafts). It may come in handy If you're hauling something heavy and had to back up a steep grade and needed the extra torque multiplication so you did not have to slip the clutch as much.
 

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That is very dissapointing to me to find that out. I have hated the CAD system since Chrysler started implimenting it on their vehicles back in the early 80's. I can only hope that the new system is electronic and not controlled by Vacuum like the previous systems were. There is nothing more annoying while trying to plow than crawling under the truck to smack the solenoid/clean the vacuum hose so 4wd would lock in. Now knowing that it might not be worth actually installing if that is the case. The only benefit would be as you said, the wheel bearings are easier/cheaper to service. If I can achieve 100,000 miles out of the unitized bearing on the truck then I don't see how the kit would be worth it unless I ran hot shots or used the truck for long hauls as a business.



The only benefit you would get from that would be essentially imitating a 2WD Low situation. Essentially you would get the torque multiplication of 4-Low but with the hubs unlocked only the rear wheels would turn (as would the front drive shaft, ring, pinion and axle shafts). It may come in handy If you're hauling something heavy and had to back up a steep grade and needed the extra torque multiplication so you did not have to slip the clutch as much.
Exactly. Ths is especially useful for those with manuals trying to back up a trailer with a dual disk clutch. I had spintech's on my 07 5.9 auto and even then it was handy with the camper.
 

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Would there will be the benefit of backing up trailers in low range with the hubs unlocked?
Its nice being able to move trailers around with my other truck in 2Lo. Not just backing up.
 

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Does anyone know if the knock outs on the Longhorn wheels are the correct size for hubs?

 

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The only advantage of a free spin kit on a Cad equipped truck is serviceable wheel bearings. You can buy a lot of unit bearings for the price of a free spin kit. If you want a 2 wheel low option BD sells a kit for $149. It installs in less than an hour and is controlled electronically, as is the factory cad system.
 

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I think you could run a Truetrac with hubs,but not with the CAD.
BD makes a low range switch to enable LR but it stops the front axle from engaging.
 

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I think you could run a Truetrac with hubs,but not with the CAD.
BD makes a low range switch to enable LR but it stops the front axle from engaging.
WAIT! You cannot run a TrueTrac with the CAD? My other plan besides deciding on the Dynatrac kit was to put in a TrueTrac upfront. This I was planning on, especially since just like the Dynatrac, I have the TrueTrac in my 04.5 and very much wanted to put one in my new "17. Can you explain what the problem would be in doing this? It would be NECESSARY to put in the Dynatrac of I want the Eaton Turetrac upfront?
 

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I think you could run a Truetrac with hubs,but not with the CAD.
BD makes a low range switch to enable LR but it stops the front axle from engaging.
Beware the man who says " I don't think you can". Better to search " Who has a TruTrac up front?" Talk to the man who does. Nothing beats first hand experience . I don't run one yet, but when I need repairs I'll install one.There' s no reason you can't use a TruTrac with the cad system. I ran one with full time 4 wheel in a 77 GM. Plenty of people do it. If you keep this jumping to conclusions up you'll break your neck.
 

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Beware the man who says " I don't think you can". Better to search " Who has a TruTrac up front?" Talk to the man who does. Nothing beats first hand experience . I don't run one yet, but when I need repairs I'll install one.There' s no reason you can't use a TruTrac with the cad system. I ran one with full time 4 wheel in a 77 GM. Plenty of people do it. If you keep this jumping to conclusions up you'll break your neck.
The reason I asked was because I had searched on here and cannot find any posts/threads that are on point regarding a free spin kit up front on a new Ram with CAD, and on the off chance that the poster who made the remark had some info that could help. While I currently have a TrueTrac in my Ram, it is an 04.5 which of course does not have CAD but I sure do like that truetrac and want to put one in again on the '17. I agree with you that there should not be any reason for not putting a truetrac with the CAD....but willing to listed if someone here has some info to the contrary.
 

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WAIT! You cannot run a TrueTrac with the CAD? My other plan besides deciding on the Dynatrac kit was to put in a TrueTrac upfront. This I was planning on, especially since just like the Dynatrac, I have the TrueTrac in my 04.5 and very much wanted to put one in my new "17. Can you explain what the problem would be in doing this? It would be NECESSARY to put in the Dynatrac of I want the Eaton Turetrac upfront?
Do you see a part number on Eaton's Truetrac application list? I might have missed it.I admit my eyesight,memory and other things are failing.
I mentioned it so you could check it out ahead of time... if what I thought I remembered reading on this site was accurate,I just never know these days.

Is it better to mention something that can be checked out or remain silent and let someone find out later?
 

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Do you see a part number on Eaton's Truetrac application list? I might have missed it.I admit my eyesight,memory and other things are failing.
I mentioned it so you could check it out ahead of time... if what I thought I remembered reading on this site was accurate,I just never know these days.

Is it better to mention something that can be checked out or remain silent and let someone find out later?
1) Thanks for your snide remark, you obviously checked the application guide knowing it does not list a'17, otherwise you would have not made your comment

2) I checked the application guide ahead of time, before I ever posted here, as well as I also talked with an Eaton tech. He told me 914A643 and you need a ring and pinion from a pre- '07 or a spacer on the differential. That help you?

3) Where in my post did I say I did not believe you? I asked specifically what info was there that a truetrac would not work with the new Ram's CAD system. I planned on putting one in my '17 and was asking you if you had specific info that it would not work. Can you answer that question?

4) I guess your comment in your first post about the truetrac does work with a free spin hub kit on a '17 is in the application guide. I might have missed it. I admit my eyesight,memory and other things are failing.

5) "Is it better to mention something that can be checked out or remain silent..." Your second post here contains no info which I originally asked of you on why a truetrac can be used on a '17 with CAD, so I guess you chose to remain silent.
 

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1) Thanks for your snide remark, you obviously checked the application guide knowing it does not list a'17, otherwise you would have not made your comment
My remark was not snide,that was what you inferred,I did not reply in a snide manner.I don't waste my time mucking around on forums playing games.I did recheck the list ,I checked it 3 years ago when I bought the truck as I was thinking of buying it.

2) I checked the application guide ahead of time, before I ever posted here, as well as I also talked with an Eaton tech. He told me 914A643 and you need a ring and pinion from a pre- '07 or a spacer on the differential. That help you?

3) Where in my post did I say I did not believe you? I asked specifically what info was there that a truetrac would not work with the new Ram's CAD system. I planned on putting one in my '17 and was asking you if you had specific info that it would not work. Can you answer that question?
I am old and forgetful,I read stuff on this forum but I can't always remember exactly what was said.I do know that posts I read steered my away from the Truetrac and toward the E Locker,but that is hard to find and there may be a spacer required.

4) I guess your comment in your first post about the truetrac does work with a free spin hub kit on a '17 is in the application guide. I might have missed it. I admit my eyesight,memory and other things are failing.

5) "Is it better to mention something that can be checked out or remain silent..." Your second post here contains no info which I originally asked of you on why a truetrac can be used on a '17 with CAD, so I guess you chose to remain silent.
I couldn't find the post,I spent some time looking,but could not find it. It may well be a figment of my faulty memory,I said I think for a reason.

 

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Fine, no problems. I have looked for posts too. Cannot find any that address putting a TrueTrac in a new Ram that has the CAD.

According to the tech at Eaton the reason there is no listing for a '17 is because they have not physically done it themselves. In cases like that he said Eaton relies on either feedback from customers who actually do it (which is how they have a note on the pre 07 ring and pinion) or from what they can determine from manufacturers specifications. His comment to me was it should work AND if I was to do this to let him know the outcome.

I wished Eaton did list an E-locker, I did not find one. It would be a good alternate.

Odds are I am even older than you (unfortunately lol)..........
 

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I ordered therammaninc.com hubs, still waiting on them, A friend of mine has the dynatrac free spins like your looking at. He says he sleeps better at night now. They improve you mpg a little, also they keep all the front end components from moving all the time for no reason. Mine should ship out friday of this week. The reason I went with the theramman vs dynatrac is price and installation time is about cut in half. But since your 2017 models I see your best option is going to be dynatrac cause the ramman only goes to 2016. To me going back old school seems to be the way for sure.
 
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Considering that you get close to 100k out the factory unit bearings, the whole setup is really only worth the money if you REALLY NEED to have 2WD lo range. That said, the only free spin kit I would put on my truck is the Dyna Trac kit.
 

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Considering that you get close to 100k out the factory unit bearings, the whole setup is really only worth the money if you REALLY NEED to have 2WD lo range. That said, the only free spin kit I would put on my truck is the Dyna Trac kit.
Rhino....even though I currently have a truck with the Dnyatrac's in it (04.5) and completely satisfied with it, I have come to the same conclusion that with the new Ram's CAD it just is not worth it for me. My main focus here now is to find out if I can put an Eaton TrueTrac up front in the new '17. Again my current 04.5 also has this and want to put one in the '17, the truetrac is really great to use in the snow.......
 
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