Forum
Avatar
Please consider registering
Guest
Advanced Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
message
JK's on 37's or Bigger with D44's What are You Running for Caster?
December 13, 2021
7:22 am
Avatar
Jamie (K6NUB)
Folsom

Club Webmaster
Club Officer
Forum Posts: 497
Member Since:
August 5, 2017
sp_UserOfflineSmall Offline

Hey all, since I went to the 37's on my rig I feel like the steering has got a bit flighty and does not want to re-center. I've read a little bit and I am seeing some pretty big swings in what folks are running for caster which sounds like could be the culprit. My lift recommended 5-6 degeees which is where I am at, mid-high 5's. I have heard some folks talking about up to 10 which sounds like a ton. What are you running?

I have checked all suspension componenets and everythig looks solid so I don't think there is anything going on there. WHen I have some time I might just increase it a bit and see what happens, but would be curious to see what others are running.

K6NUB

December 13, 2021
8:27 am
Avatar
Specialsoundman
Sacramento, CA
Registered User

Club Member
Forum Posts: 836
Member Since:
June 4, 2012
sp_UserOfflineSmall Offline

I could not resist........powertec-caster.jpg

sp_PlupAttachments Attachments

If I can't build it, then it's something that should be bought.

December 13, 2021
5:33 pm
Avatar
JohnDF
Member

Club Member
Forum Posts: 9427
Member Since:
July 10, 2003
sp_UserOfflineSmall Offline

My old JK lift had pre-set control arms, so I'm not even sure what the castor was set at. But the company did a good job of dialing-in the correct measurements because I never had a steering issue on my D44. The steering components were all beef too, which probably helped a little too. Sorry I'm not much help.

I used to wheel a lot. . .

December 19, 2021
7:00 am
Avatar
kris_olof
El Dorado

Club President
Club Officer
Forum Posts: 970
Member Since:
March 13, 2015
sp_UserOfflineSmall Offline

How close is your pinion to pointing at the T-case output?  If it is already a little low then might not have much room for adjustment.  In TJ land 7-10 was ideal but the JK is a more refined suspension so shouldn't need as much. If you have enough pinion angle to work with I would bump it a degree or two and just see how it feels.

Another option would be to borrow someone else's tires/wheels for a test.  Could just be the 37s don't want to be on the street and are telling you so.

December 20, 2021
5:48 am
Avatar
JohnDF
Member

Club Member
Forum Posts: 9427
Member Since:
July 10, 2003
sp_UserOfflineSmall Offline

kris_olof said
Another option would be to borrow someone else's tires/wheels for a test.

  

Good point. I had a set of Toyo tires that wouldn't return to center and always felt like they wanted to wander.

I switched tires and the problem went away. It's definitely worth a try before messing with angles and such.

I used to wheel a lot. . .

December 20, 2021
1:34 pm
Avatar
Jamie (K6NUB)
Folsom

Club Webmaster
Club Officer
Forum Posts: 497
Member Since:
August 5, 2017
sp_UserOfflineSmall Offline

I will check the relation from the pinion to the t-case, but the Ultimate Dana 44 is supposed to be caster corrected so I should have room. I was having the same thought, adjust it out a couple degrees and see how it feels.

kris_olof said
How close is your pinion to pointing at the T-case output?  If it is already a little low then might not have much room for adjustment.  In TJ land 7-10 was ideal but the JK is a more refined suspension so shouldn't need as much. If you have enough pinion angle to work with I would bump it a degree or two and just see how it feels.

Another option would be to borrow someone else's tires/wheels for a test.  Could just be the 37s don't want to be on the street and are telling you so.

  

K6NUB

Forum Timezone: America/Los_Angeles
Most Users Ever Online: 81
Currently Online:
Guest(s) 1
Currently Browsing this Page:
1 Guest(s)
Top Posters:
JohnDF: 9427
Fred: 3604
Gregulator: 2987
RobD: 1721
Josh: 1496
Tom: 1465
Justin: 1416
Dan-H: 1378
Jeff_R: 1302
Gilbert & Betty: 1300
Member Stats:
Guest Posters: 12
Members: 163
Moderators: 7
Admins: 1
Forum Stats:
Groups: 5
Forums: 24
Topics: 4007
Posts: 62706
Newest Members:
junior33t14873, staciadanford53, Andrewtript, marystevenson, isabellaenglish, dtriplej6, kutikovaer, teto10
Moderators: Posse4x4: 1, BKGM Jeepers: 6730, Lynda and Guy: 32, Guy and Lynda: 1210, kris_olof: 970, bear_dog: 145, Jamie (K6NUB): 497
Administrators: k-jeep: 2138
Members Birthdays
sp_BirthdayIcon
Today: None
Upcoming: None