Gears?

User avatar
1pieceatatime
Posts: 45
Joined: Sat Feb 17, 2018 2:45 pm
Model Year: 2018
Location: The Mitten

Gears?

Post by 1pieceatatime » Fri Dec 14, 2018 10:25 am

Considering going to 37" tires next summer if when my 35" are getting worn out. Even on the 35s I am asking myself if I should re-gear to liven the truck up some, so thinking that on 37s I would definitely want to.

A couple of questions:

1) There are a few different gear suppliers out there - is there a particular community favorite / consensus best bang-for-buck?

2) What ratio? Is 4.56 a big enough jump?

User avatar
Low_Sky
500_Posts
500_Posts
Posts: 954
Joined: Fri May 01, 2015 7:12 pm
Model Year: 2015
Location: Eagle River, Alaska

Re: Gears?

Post by Low_Sky » Fri Dec 14, 2018 10:55 am

Compared to OEM 4.10s with 33’s, you’ll have approximately the same gearing with 4.56/35” and 4.88/37”.

For 37s, even 5.13s are a good choice if you want to go a little deeper than factory gearing.
John
Alaska
2015 PW on 2.5" Thuren Kings
My build thread

User avatar
OffroadTreks
Moderator
Moderator
Posts: 2306
Joined: Fri Mar 25, 2016 11:23 am
Model Year: 2015
Location: Nomadic
Contact:

Re: Gears?

Post by OffroadTreks » Fri Dec 14, 2018 11:47 am

1pieceatatime wrote:
Fri Dec 14, 2018 10:25 am
A couple of questions:

1) There are a few different gear suppliers out there - is there a particular community favorite / consensus best bang-for-buck?
2) What ratio? Is 4.56 a big enough jump?
I agree with Low_sky. Hopefully, Reloader will comment soon. He's all but sold me on moving to 5.13's.

As much as I have talked up 40's, when I am honest with myself about how I use my truck and how many miles we drive every year... I think I'm never going any bigger than 37's.

4.88's are where you want to start looking. Know a lot of guys running that who are happy. And 5.13 seems like they'd be ideal for more pep or if you want to really tow. In my case, both of these.

Yukon and AAM are the two you want to look at. Nitro is cheaper, but some folks have issues with them after installation.

Eventually, I'll get around to gears. Need to head up to the secret Maple Shop and get it done.

:cheers:
2015 Power Wagon Laramie - "ROCKLANDER"
[Build Thread] [Instagram] [Youtube]

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Fri Dec 14, 2018 12:13 pm

Mike pretty much hit all of the points. I think 4.88 is the common ratio for 37's but is a mistake. Most people probably call Randy's R&P and they tell them 4.88 because that is technically the lowest available gear set for the Chrysler 9.25 front diff. However, 5.13 is far better ratio for 37's considering how high the 66RFE is geared. I ran 5.13s with 37's for about five months and it felt perfect.

As far as brands go, I have AAM rear and Yukon front. I have never heard anything good about Nitro and would stay away, they are the low cost alternative. If you go with 5.13s there are AAM options for the front and rear but they are not cheap. Yukon is my second choice and I have run them in several other vehicles besides the PW. If you run 4.88 there isn't a viable AAM option so you'll be looking at non OEM sets. If you go with 5.13s you need GM front gears and a Yukon ring gear spacer. AAM 11.5" 5.13's are out of a 2013 C&C 11.5 small bearing axle and you will need to plan accordingly. Just Differentials is the best source for the parts.

Mike can't handle 40's.

Colibri
1000_Posts
1000_Posts
Posts: 1687
Joined: Mon Jun 08, 2015 5:44 pm
Model Year: 2009

Re: Gears?

Post by Colibri » Fri Dec 14, 2018 12:51 pm

People that are happy with 4.88 and 37’s don’t know any better, plain and simple. Go 5.13 you absolutely won’t regret it. All the other high points have been hit so I won’t repeat them
Central Texas and Houston area
2009 5.7 auto quadcab
Carli 3” coils deaver leafs 3” kings with 4 tube bypass rear and fr/rr hydro bumps
Howe steering pump and gear with hydraulic ram assist
Custom tube bumpers and white knuckle sliders
Creative fab trussed axle. rem polished and cryoed 5.13 gears with arb lockers fr/rr
Sharadon stage 2 545rfe with 3000 stall edge converter
Lots of other stuff lol

User avatar
olyelr
2000_Posts
2000_Posts
Posts: 3588
Joined: Sun Dec 07, 2014 9:00 pm
Model Year: 2016
Location: Kewadin, MI

Re: Gears?

Post by olyelr » Fri Dec 14, 2018 1:52 pm

Reloaderguy wrote:
Fri Dec 14, 2018 12:13 pm


Mike can't handle 40's.

:rofl:




I do see where he is coming from though. I would have to guess that 40s with a 6.4 feels much like a turd, even with 5.13s. And then to have to tow with it...
2016 Ram Power Wagon Laramie - Granite Crystal Metallic - Ramboxes - 35” AT3W - TazerRAM

:patriot:

User avatar
Bill2014
1000_Posts
1000_Posts
Posts: 1258
Joined: Fri May 09, 2014 9:03 pm
Model Year: 2014
Location: Northern NY

Re: Gears?

Post by Bill2014 » Fri Dec 14, 2018 2:10 pm

olyelr wrote:
Fri Dec 14, 2018 1:52 pm
Reloaderguy wrote:
Fri Dec 14, 2018 12:13 pm


Mike can't handle 40's.

:rofl:




I do see where he is coming from though. I would have to guess that 40s with a 6.4 feels much like a turd, even with 5.13s. And then to have to tow with it...
People with 40's aren't towing anything substantial...
2014 Power Wagon Laramie
Titan V5 2.5" Receiver Pintle Hook
Warn wireless winch controller
.188" DOM White Knuckle Rock Sliders
Locker Bypass & Nanny Kill Switch

Moab 2006

User avatar
olyelr
2000_Posts
2000_Posts
Posts: 3588
Joined: Sun Dec 07, 2014 9:00 pm
Model Year: 2016
Location: Kewadin, MI

Re: Gears?

Post by olyelr » Fri Dec 14, 2018 2:45 pm

Bill2014 wrote:
Fri Dec 14, 2018 2:10 pm
olyelr wrote:
Fri Dec 14, 2018 1:52 pm
Reloaderguy wrote:
Fri Dec 14, 2018 12:13 pm


Mike can't handle 40's.

:rofl:




I do see where he is coming from though. I would have to guess that 40s with a 6.4 feels much like a turd, even with 5.13s. And then to have to tow with it...
People with 40's aren't towing anything substantial...
Exactly my point. Not with the 6.4 anyway. With a cummins I could see it being fine.
2016 Ram Power Wagon Laramie - Granite Crystal Metallic - Ramboxes - 35” AT3W - TazerRAM

:patriot:

User avatar
1pieceatatime
Posts: 45
Joined: Sat Feb 17, 2018 2:45 pm
Model Year: 2018
Location: The Mitten

Re: Gears?

Post by 1pieceatatime » Fri Dec 14, 2018 3:05 pm

Thanks fellas. There's that sorted, then.

Wilsonsinak
Posts: 33
Joined: Tue May 30, 2017 12:44 pm
Model Year: 2006
Location: Anchorage, Alaska

Re: Gears?

Post by Wilsonsinak » Fri Dec 14, 2018 3:30 pm

We have an 06 so it has the 5.7, so not the same truck. I swapped out the rear 10.5 for a 11.5 so I could go with 5.38's. We are running 40's and tow our 10k pound camper and it does very well. With the 6.4 and 37's I would absolutely go with 5.13's.

Image
2006 Power Wagon, 40" Pro Comp MT2's, 5.38 gears, 11.5 rear axle with an arb, DV8 beadlocks..... located in Alaska

Tim

User avatar
1pieceatatime
Posts: 45
Joined: Sat Feb 17, 2018 2:45 pm
Model Year: 2018
Location: The Mitten

Re: Gears?

Post by 1pieceatatime » Fri Dec 14, 2018 3:47 pm

nice setup!

User avatar
1pieceatatime
Posts: 45
Joined: Sat Feb 17, 2018 2:45 pm
Model Year: 2018
Location: The Mitten

Re: Gears?

Post by 1pieceatatime » Fri Dec 14, 2018 3:53 pm

Hmmm... looks like AEV ProCal only goes up to 4.88:1, that's kind of a bummer.

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Fri Dec 14, 2018 4:40 pm

AlfaOBD does everything the ProCal does and more. Don't waste your money on the ProCal.

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Fri Dec 14, 2018 4:41 pm

Bill2014 wrote:
Fri Dec 14, 2018 2:10 pm
olyelr wrote:
Fri Dec 14, 2018 1:52 pm
Reloaderguy wrote:
Fri Dec 14, 2018 12:13 pm


Mike can't handle 40's.

:rofl:




I do see where he is coming from though. I would have to guess that 40s with a 6.4 feels much like a turd, even with 5.13s. And then to have to tow with it...
People with 40's aren't towing anything substantial...
Show us your substantial towing that you think can't be done with 40's. I'll wait.

User avatar
Bill2014
1000_Posts
1000_Posts
Posts: 1258
Joined: Fri May 09, 2014 9:03 pm
Model Year: 2014
Location: Northern NY

Re: Gears?

Post by Bill2014 » Sat Dec 15, 2018 4:46 pm

When my trailer’s loaded to over 18,000 pounds (over 26,000 pounds gross) , it handles poor on the 33’s. Why would anyone choose 40’s to haul heavy. Just doesn’t make sense. :doh:
2014 Power Wagon Laramie
Titan V5 2.5" Receiver Pintle Hook
Warn wireless winch controller
.188" DOM White Knuckle Rock Sliders
Locker Bypass & Nanny Kill Switch

Moab 2006

User avatar
OffroadTreks
Moderator
Moderator
Posts: 2306
Joined: Fri Mar 25, 2016 11:23 am
Model Year: 2015
Location: Nomadic
Contact:

Re: Gears?

Post by OffroadTreks » Sat Dec 15, 2018 4:50 pm

Bill2014 wrote:
Sat Dec 15, 2018 4:46 pm
When my trailer’s loaded to over 18,000 pounds (over 26,000 pounds gross) , it handles poor on the 33’s. Why would anyone choose 40’s to haul heavy. Just doesn’t make sense. :doh:
Why are you towing 18k with a Hemi Power Wagon anyways? :popcorn:
2015 Power Wagon Laramie - "ROCKLANDER"
[Build Thread] [Instagram] [Youtube]

User avatar
Bill2014
1000_Posts
1000_Posts
Posts: 1258
Joined: Fri May 09, 2014 9:03 pm
Model Year: 2014
Location: Northern NY

Re: Gears?

Post by Bill2014 » Sat Dec 15, 2018 5:01 pm

BoldAdventure wrote:
Sat Dec 15, 2018 4:50 pm
Bill2014 wrote:
Sat Dec 15, 2018 4:46 pm
When my trailer’s loaded to over 18,000 pounds (over 26,000 pounds gross) , it handles poor on the 33’s. Why would anyone choose 40’s to haul heavy. Just doesn’t make sense. :doh:
Why are you towing 18k with a Hemi Power Wagon anyways? :popcorn:
That’s a fair point...

If I know I need to take some loads where there’s not pavement, I typically bring out the power wagon. Otherwise, I do use the CTD. Although Murphy’s law kicks in a lot when I take the Power Wagon - I ask for 5 tons and some new loader operator drops 7 tons in my trailer that weighs 2 tons empty. You don’t always know what you’re hauling until you hit the scale :o
2014 Power Wagon Laramie
Titan V5 2.5" Receiver Pintle Hook
Warn wireless winch controller
.188" DOM White Knuckle Rock Sliders
Locker Bypass & Nanny Kill Switch

Moab 2006

ramv
500_Posts
500_Posts
Posts: 579
Joined: Wed Feb 24, 2016 10:36 am

Re: Gears?

Post by ramv » Sun Dec 16, 2018 5:25 pm

So, if I read this right, would this be a direct fit, no spacer for our trucks (other than early 3G)
https://www.justdifferentials.com/AAM-9 ... 13r-oe.htm
2016 Laramie; Locker Bypass, WK sliders, 35" Toyo MT, 2Lo Kit, ProCal, Airbags/Cradles, Thuren 2.5" King w/ Boogie Bumps, Warn SDP6000

ramv
500_Posts
500_Posts
Posts: 579
Joined: Wed Feb 24, 2016 10:36 am

Re: Gears?

Post by ramv » Sun Dec 16, 2018 5:31 pm

And rear for best Gen
https://www.justdifferentials.com/AAM-1 ... 513-oe.htm

Damn, wish we had of had this thread a few months ago. I would have ordered these up.
2016 Laramie; Locker Bypass, WK sliders, 35" Toyo MT, 2Lo Kit, ProCal, Airbags/Cradles, Thuren 2.5" King w/ Boogie Bumps, Warn SDP6000

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Sun Dec 16, 2018 7:23 pm

ramv wrote:
Sun Dec 16, 2018 5:25 pm
So, if I read this right, would this be a direct fit, no spacer for our trucks (other than early 3G)
https://www.justdifferentials.com/AAM-9 ... 13r-oe.htm
No, that is the GM IFS pattern front gear. You need a spacer.

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Sun Dec 16, 2018 7:27 pm

ramv wrote:
Sun Dec 16, 2018 5:31 pm
And rear for best Gen
https://www.justdifferentials.com/AAM-1 ... 513-oe.htm

Damn, wish we had of had this thread a few months ago. I would have ordered these up.
That is for Worst Gen but it is the only AAM 5.13 and will fit with the correct conversion pinion bearing. Just Diff's will ask for your vin to verify you have the Best Gen large bearing axle housing.

ramv
500_Posts
500_Posts
Posts: 579
Joined: Wed Feb 24, 2016 10:36 am

Re: Gears?

Post by ramv » Sun Dec 16, 2018 9:35 pm

I had to do a conversion bearing on my Dana 70 in my second gen when I put spicer 5.13s in as well. History repeats.
2016 Laramie; Locker Bypass, WK sliders, 35" Toyo MT, 2Lo Kit, ProCal, Airbags/Cradles, Thuren 2.5" King w/ Boogie Bumps, Warn SDP6000

13BlkPowerWagon
50_Posts
50_Posts
Posts: 94
Joined: Sat Feb 04, 2017 6:07 pm
Model Year: 2013

Re: Gears?

Post by 13BlkPowerWagon » Wed Dec 19, 2018 1:56 pm

Reloaderguy wrote:
Fri Dec 14, 2018 4:41 pm
Bill2014 wrote:
Fri Dec 14, 2018 2:10 pm
olyelr wrote:
Fri Dec 14, 2018 1:52 pm



:rofl:




I do see where he is coming from though. I would have to guess that 40s with a 6.4 feels much like a turd, even with 5.13s. And then to have to tow with it...
People with 40's aren't towing anything substantial...
Show us your substantial towing that you think can't be done with 40's. I'll wait.
Why stop at 40's? Serious towing requires 52's!!!
https://en.wikipedia.org/wiki/Oshkosh_M1070

benking
Posts: 21
Joined: Thu Feb 14, 2019 10:12 am
Model Year: 2019

Re: Gears?

Post by benking » Sun Feb 24, 2019 3:56 pm

ramv wrote:
Sun Dec 16, 2018 5:25 pm
So, if I read this right, would this be a direct fit, no spacer for our trucks (other than early 3G)
https://www.justdifferentials.com/AAM-9 ... 13r-oe.htm
I thought the same thing. What does this tech note mean, if this isn’t the right gear...?
Attachments
71C75EA8-845F-4D04-84EE-029C5970A4F5.jpeg

User avatar
Reloaderguy
2000_Posts
2000_Posts
Posts: 2155
Joined: Tue Feb 09, 2016 8:06 am
Model Year: 2016
Location: Central Oregon

Re: Gears?

Post by Reloaderguy » Sun Feb 24, 2019 5:26 pm

Different carriers have different ring gear flange locations. I believe 3.42 or 3.73 is the cutoff. Your carrier is correct for those gears.

Post Reply