Which ring and pinion brand ? - JeepForum.com
Reply
 
LinkBack Thread Tools
post #1 of 16 Old 05-22-2021, 08:38 AM Thread Starter
YJ40
Registered User
 
YJ40's Avatar
1989 YJ Wrangler 
 
Join Date: Feb 2009
Posts: 22
Which ring and pinion brand ?

I will build a D44 front for my YJ. Which ring and pinion brand would you recommend ? In my old D30HP i had 3 different brands and i think there was no difference, they all lost teeths...
I plan 4.88 gears standart rotation.
Thanks for you advice.

Attached Thumbnails
IMG_20210516_104654_0.jpg  

89YJ 4.6l
94YJ 4.0l
YJ40 is offline  
Sponsored Links
Advertisement
 
post #2 of 16 Old 05-22-2021, 09:09 AM Thread Starter
YJ40
Registered User
 
YJ40's Avatar
1989 YJ Wrangler 
 
Join Date: Feb 2009
Posts: 22
Next question, i found r&p with 4.88 and 4.89, means 9:44 and 8:39 teeths. I would think more teeths on the pinion means more contact with ringgearteeths...? right..? more durability?

89YJ 4.6l
94YJ 4.0l
YJ40 is offline  
post #3 of 16 Old 05-22-2021, 01:22 PM
80cj
Web Wheeler
 
80cj's Avatar
1980 CJ5 
 
Join Date: May 2002
Location: Hawaii
Posts: 8,672
My preference would be Dana Spicer. I had a Jeep with a Dana 27 front and Dana 44 rear. The front was 39/8 and the rear was 44/9. Apparently Dana decided that those combinations are best for those ring and pinion sizes.
80cj is offline  
 
post #4 of 16 Old 05-22-2021, 01:56 PM
calisk8er1080
Registered User
 
calisk8er1080's Avatar
1992 YJ Wrangler 
 
Join Date: Dec 2013
Location: Erie
Posts: 304
Garage
Quote:
Originally Posted by YJ40 View Post
I will build a D44 front for my YJ. Which ring and pinion brand would you recommend ? In my old D30HP i had 3 different brands and i think there was no difference, they all lost teeths...
I plan 4.88 gears standart rotation.
Thanks for you advice.
I put G2s in my JK about 4 or 5 years ago. Zero problems between then and now. Honestly as long as you get them set up properly, and don't wheel with a lead foot, you should be fine with whatever brand you go with

Quote:
Originally Posted by YJ40 View Post
Next question, i found r&p with 4.88 and 4.89, means 9:44 and 8:39 teeths. I would think more teeths on the pinion means more contact with ringgearteeths...? right..? more durability?
exactly right. the more contact area you have between the gears, the stronger. which is why super low gearing usually results in a weaker pinion gear.

Been MIA from here for a while... I'm trying to be active in this community again.
calisk8er1080 is offline  
post #5 of 16 Old 05-22-2021, 03:47 PM
jeep_boy02
Registered User
1934 CJ7 
 
Join Date: Dec 2012
Location: Joplin
Posts: 741
Garage
More teeth on the pinion means a smaller pinion which equates to less strength. As long as they're a reputable brand(Nitro, Dana, US gear, Yukon, G2) you're safe. No names made in India, China, etc are just paper weights. I had a set made off shore once and they wouldn't even set up right. Never tried them on the street or trail cause they wouldn't produce a good contact pattern. Played with them everyday for 2 weeks, ordered a set from US gear and they set right up in 30 mins.

Sent from my SM-A015A using Tapatalk

80 CJ7-304/T176/D300 HEI hdrs-WT D30/D44 4.56s, lockright/spool-SOA YJs W/RE AAL-35 MTRs beadlocks
jeep_boy02 is offline  
post #6 of 16 Old 05-22-2021, 04:55 PM
80cj
Web Wheeler
 
80cj's Avatar
1980 CJ5 
 
Join Date: May 2002
Location: Hawaii
Posts: 8,672
Quote:
Originally Posted by jeep_boy02 View Post
More teeth on the pinion means a smaller pinion which equates to less strength. As long as they're a reputable brand(Nitro, Dana, US gear, Yukon, G2) you're safe. No names made in India, China, etc are just paper weights. I had a set made off shore once and they wouldn't even set up right. Never tried them on the street or trail cause they wouldn't produce a good contact pattern. Played with them everyday for 2 weeks, ordered a set from US gear and they set right up in 30 mins.

Sent from my SM-A015A using Tapatalk
More teeth on the pinon can also mean more pinion tooth area in contact with the ring gear but a smaller diameter pinion head means less pinion teeth in contact with the ring gear. Things like pinion offset come into play also which is where a 9" Ford gains some of its strength in addition to having a pinion straddle bearing to control pinion deflection.
80cj is offline  
post #7 of 16 Old 05-23-2021, 02:50 AM Thread Starter
YJ40
Registered User
 
YJ40's Avatar
1989 YJ Wrangler 
 
Join Date: Feb 2009
Posts: 22
What is with Dana SVL? Found them on Rockauto...Dana and Dana SVL
And is Yukon (385$) worth the price compared to others G2 / Dana ~200$ ?

89YJ 4.6l
94YJ 4.0l
YJ40 is offline  
post #8 of 16 Old 05-23-2021, 07:15 AM
fishadventure
Web Wheeler
 
fishadventure's Avatar
1989 YJ Wrangler 
 
Join Date: Jul 2013
Location: Morrisville
Posts: 9,192
Garage
I would just buy the Dana

[size=3]Shackles & D-rings are different things.
Cranking IS turning over
fishadventure is offline  
post #9 of 16 Old 05-23-2021, 07:35 AM
Waternut
Registered User
 
Waternut's Avatar
1988 YJ Wrangler 
 
Join Date: Sep 2016
Location: Macon
Posts: 2,068
Using a hefty chunk of generality, bigger tires are harder on axles while bigger engine power is harder on ring and pinions. If you already broke your ring and pinion on your D30, you will most likely break them again so stay away from the cheaper gears. Most gear manufacturers have an "economy line" where they can sell slightly lower quality gears at a discount price for the people who aren't towing or pushing their gearsets. Dana SVL is that economy line for Dana.

I also broke a R&P on 35" tires with my V8. I also broke the ring gear and not the pinion. With an 8.8 rear and D30 front with chromo axles, your weakest link is your R&P. I thought long and hard about replacing gears in my D30 but ultimately chose to swap the front axle since I knew it would just happen again. I didn't see anyone else say it but if you have a YJ D30, you have reverse rotation gears.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Waternut is offline  
post #10 of 16 Old 05-23-2021, 07:57 AM
222Doc
Registered User
 
222Doc's Avatar
2012 JK Wrangler 
 
Join Date: Sep 2011
Location: Lake Havasu City
Posts: 10,156
Garage
even stock power breaks d30s. Dont take all that much power when its say 90:1 to break anything really. just get one tire in a bind and dont stop.

d30s break on 35s... rather common issue d44 will hold the 35s better JK Gear set is the strongest of the d44s. But being in clubs i see they same thing in D44 even with near a 9" ring. 37s its at red line really, but people want 40s but dont want to step up to 1 tons $$$$$$. 40s on a d44 even with all the best junk RCVs and axles and trusses and on and on still wont touch a d60 step up to the new Dana 60 UD60 and that is some real beef for stock. Biggest U joint in any 60. Ball joint is massive. better clearance tighter housing.Dana makes it a bolt on for jk junk....but Jk dana UD set cost near what a jeep used would cost... might as well build a buggy and toss the jeep. Better yet buy a used Buggy someone is done wheeling.

Home of the Parker Desert Splash

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
222Doc is offline  
post #11 of 16 Old 05-23-2021, 08:17 AM Thread Starter
YJ40
Registered User
 
YJ40's Avatar
1989 YJ Wrangler 
 
Join Date: Feb 2009
Posts: 22
Hi,
thats right, i have a D30HP in my YJ, and thats the picture i made. I have to replace r&p (and its ordered (summitracing Motive Gear,-> fast delivery and easy to get...)) that i can use my Jeep on the summer events. But same to you i think about an axle swap. Since some weeks i work on a D44 standart rotation and for this D44 ill pic the most reliable parts without bust the budget. So when the Yukon is more durable then i would spend more money but when theres no advantage then i will use the "cheaper" G2 or Dana ( not the SVL ). After the season ill change to the d44
Thanks for you experience to decide this...

89YJ 4.6l
94YJ 4.0l
YJ40 is offline  
post #12 of 16 Old 05-23-2021, 11:36 AM
Waternut
Registered User
 
Waternut's Avatar
1988 YJ Wrangler 
 
Join Date: Sep 2016
Location: Macon
Posts: 2,068
Quote:
Originally Posted by YJ40 View Post
Hi,
thats right, i have a D30HP in my YJ, and thats the picture i made. I have to replace r&p (and its ordered (summitracing Motive Gear,-> fast delivery and easy to get...)) that i can use my Jeep on the summer events. But same to you i think about an axle swap. Since some weeks i work on a D44 standart rotation and for this D44 ill pic the most reliable parts without bust the budget. So when the Yukon is more durable then i would spend more money but when theres no advantage then i will use the "cheaper" G2 or Dana ( not the SVL ). After the season ill change to the d44
Thanks for you experience to decide this...
I agree with your logic. If there are events in the near future, change the gearset now and plan for an axle swap in the near future. Maybe keep your eyes on the used market. If it's possible, maybe you could sell your axle complete and ready to bolt in to someone else. I didn't have that luxury and have a fair amount of money in my old axle ready for metal scrap.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Waternut is offline  
post #13 of 16 Old 05-23-2021, 02:20 PM
80cj
Web Wheeler
 
80cj's Avatar
1980 CJ5 
 
Join Date: May 2002
Location: Hawaii
Posts: 8,672
Especially if running a D30, perhaps the resolution is to use a locking hub in the front axle that will act as a fuse. A lot cheaper and less labor intensive than replacing gear sets. You could carry a spare and replace hubs on the trail if you blow one.
80cj is offline  
post #14 of 16 Old 05-23-2021, 06:34 PM
Waternut
Registered User
 
Waternut's Avatar
1988 YJ Wrangler 
 
Join Date: Sep 2016
Location: Macon
Posts: 2,068
Quote:
Originally Posted by 80cj View Post
Especially if running a D30, perhaps the resolution is to use a locking hub in the front axle that will act as a fuse. A lot cheaper and less labor intensive than replacing gear sets. You could carry a spare and replace hubs on the trail if you blow one.
Are locking hubs really a fuse on a D30 though? My buddy had a broken R&P on his CJ7's D30. Even if they are, that would be a considerable expense on a YJ D30 with unit bearings.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Waternut is offline  
post #15 of 16 Old 05-23-2021, 11:12 PM
80cj
Web Wheeler
 
80cj's Avatar
1980 CJ5 
 
Join Date: May 2002
Location: Hawaii
Posts: 8,672
Quote:
Originally Posted by Waternut View Post
Are locking hubs really a fuse on a D30 though? My buddy had a broken R&P on his CJ7's D30. Even if they are, that would be a considerable expense on a YJ D30 with unit bearings.
Thats right. YJ's don't have hubs. Duh. Too much CJ...
But there are some brands of hubs that are stronger than others. FWIW
80cj is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome