TJ Caster adjustment

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TJ Caster adjustment
Dennis Cox 4 April 2005 19:58:04
	I have searched the web for any sites out there that detail how to adjust caster on a lifted TJ. But no luck so far. Does anyone have a good site or can you briefly 'splain it to me? After lifting the TJ and getting an alignment, it still wanders all over the road indicating negative caster (or is it positive). I believe that I can adjust the lower control arms to be longer to correct this, but how much? I adjusted them to the same length as the stock control arms and obviously that is not correct. Also, what is the trick to getting the upper bolt hole to line up in the lower control arm? That one was a beotch last time I installed them. Also, is it safe or recommended to remove the control arms with the Jeep sitting on all 4 wheels? Thanks, Dennis
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Steve 5 April 2005 01:02:22 [ permanent link ]
	Put the the axle on stands and measure the caster by placing an angle finder on the bottom of the inner knuckle. Increase the length of your LCAs in small increments until the the knuckle is 3-6 degrees. This tips the pinion down, so only set as much positive caster as you need to regain steering control. Steve http://xjeep.dyndns.org Dennis Cox wrote:> I have searched the web for any sites out there that detail how to adjust > caster on a lifted TJ. But no luck so far. Does anyone have a good site or > can you briefly 'splain it to me? After lifting the TJ and getting an > alignment, it still wanders all over the road indicating negative caster (or > is it positive). I believe that I can adjust the lower control arms to be > longer to correct this, but how much? I adjusted them to the same length as > the stock control arms and obviously that is not correct.
		Add comment


Steve 5 April 2005 01:43:31 [ permanent link ]
	Can't you leave the upper bolt connected and turn the lower half to adjust? Either way, support the frame. Another way to measure relative caster without getting inside the knuckles is to put the angle finder on the flat surface that the front diff cover mounts to. Do this on a flat surface while the vehicle is unsupported. Steve http://xjeep.dyndns.org Dennis Cox wrote:> thanks, I'll try that. You state to put the axle on stands, does it help to > have the frame supported as well? Are there any tricks to getting the LCA's > reinstalled after each adjustment? They were a pita to install the first > time. Very tough to line up those upper bolt holes.> Thanks,> Dennis> "Steve" <xjlifter@bogus.com> wrote in message > news:yXh4e.10093$Ln.455301@ursa-nb00s0.nbnet.nb.ca...> Put the the axle on stands and measure the caster by placing an angle >>finder on the bottom of the inner knuckle. Increase the length of your >>LCAs in small increments until the the knuckle is 3-6 degrees. This tips >>the pinion down, so only set as much positive caster as you need to regain >>steering control.>> Steve>>http://xjeep.dyndns.org>> Dennis Cox wrote:>> I have searched the web for any sites out there that detail how to adjust >>>caster on a lifted TJ. But no luck so far. Does anyone have a good site >>>or can you briefly 'splain it to me? After lifting the TJ and getting an >>>alignment, it still wanders all over the road indicating negative caster >>>(or is it positive). I believe that I can adjust the lower control arms >>>to be longer to correct this, but how much? I adjusted them to the same >>>length as the stock control arms and obviously that is not correct.
		Add comment


Dennis Cox 5 April 2005 04:56:32 [ permanent link ]
	The lower bolt is one of those whachamacallit bolts. It was a pain to reinstall it the first time I installed these LCA's. The upper bolt was easier than the lower is why I was thinking I would unbolt it. Then I could twist the LCA to lengthen it and reinstall the upper bolt and recheck angle again. If I'm way off on my ideas here, please tell me. I'm not extremely mechanically inclined, although I can follow directions most of the time. Thanks, Dennis "Steve" <xjlifter@bogus.com> wrote in message news:7yi4e.10139$Ln.455301@ursa-nb00s0.nbnet.nb.ca...> Can't you leave the upper bolt connected and turn the lower half to > adjust? Either way, support the frame.> Another way to measure relative caster without getting inside the knuckles > is to put the angle finder on the flat surface that the front diff cover > mounts to. Do this on a flat surface while the vehicle is unsupported.> Steve> http://xjeep.dyndns.org> Dennis Cox wrote:>> thanks, I'll try that. You state to put the axle on stands, does it help >> to have the frame supported as well? Are there any tricks to getting the >> LCA's reinstalled after each adjustment? They were a pita to install the >> first time. Very tough to line up those upper bolt holes.>> Thanks,>> Dennis>> "Steve" <xjlifter@bogus.com> wrote in message >> news:yXh4e.10093$Ln.455301@ursa-nb00s0.nbnet.nb.ca...>> Put the the axle on stands and measure the caster by placing an angle >>>finder on the bottom of the inner knuckle. Increase the length of your >>>LCAs in small increments until the the knuckle is 3-6 degrees. This tips >>>the pinion down, so only set as much positive caster as you need to >>>regain steering control.>>> Steve>>>http://xjeep.dyndns.org>>> Dennis Cox wrote:>>> I have searched the web for any sites out there that detail how to >>>>adjust caster on a lifted TJ. But no luck so far. Does anyone have a >>>>good site or can you briefly 'splain it to me? After lifting the TJ and >>>>getting an alignment, it still wanders all over the road indicating >>>>negative caster (or is it positive). I believe that I can adjust the >>>>lower control arms to be longer to correct this, but how much? I >>>>adjusted them to the same length as the stock control arms and obviously >>>>that is not correct.>
		Add comment


Dennis Cox 6 April 2005 00:03:19 [ permanent link ]
	ok, I adjusted the eccentric bolt on the lower control arm and got enough adjustment out of it to make the steering "feel" better. When I get some time, I'll adjust the LCA longer so I can move the eccentric back to center. Thanks for all of your advice. Dennis "Dennis Cox" <denniscox45remove@removecomcast.net> wrote in message news:4o-dneTLG7fDf8zfRVn-ig@comcast.com...> The lower bolt is one of those whachamacallit bolts. It was a pain to > reinstall it the first time I installed these LCA's. The upper bolt was > easier than the lower is why I was thinking I would unbolt it. Then I > could twist the LCA to lengthen it and reinstall the upper bolt and > recheck angle again.> If I'm way off on my ideas here, please tell me. I'm not extremely > mechanically inclined, although I can follow directions most of the time. > > Thanks,> Dennis> "Steve" <xjlifter@bogus.com> wrote in message > news:7yi4e.10139$Ln.455301@ursa-nb00s0.nbnet.nb.ca...>> Can't you leave the upper bolt connected and turn the lower half to >> adjust? Either way, support the frame.>> Another way to measure relative caster without getting inside the >> knuckles is to put the angle finder on the flat surface that the front >> diff cover mounts to. Do this on a flat surface while the vehicle is >> unsupported.>> Steve>> http://xjeep.dyndns.org>> Dennis Cox wrote:>>> thanks, I'll try that. You state to put the axle on stands, does it >>> help to have the frame supported as well? Are there any tricks to >>> getting the LCA's reinstalled after each adjustment? They were a pita >>> to install the first time. Very tough to line up those upper bolt >>> holes.>>> Thanks,>>> Dennis>>> "Steve" <xjlifter@bogus.com> wrote in message >>> news:yXh4e.10093$Ln.455301@ursa-nb00s0.nbnet.nb.ca...>>> Put the the axle on stands and measure the caster by placing an angle >>>>finder on the bottom of the inner knuckle. Increase the length of your >>>>LCAs in small increments until the the knuckle is 3-6 degrees. This tips >>>>the pinion down, so only set as much positive caster as you need to >>>>regain steering control.>>>> Steve>>>>http://xjeep.dyndns.org>>>> Dennis Cox wrote:>>>> I have searched the web for any sites out there that detail how to >>>>>adjust caster on a lifted TJ. But no luck so far. Does anyone have a >>>>>good site or can you briefly 'splain it to me? After lifting the TJ >>>>>and getting an alignment, it still wanders all over the road indicating >>>>>negative caster (or is it positive). I believe that I can adjust the >>>>>lower control arms to be longer to correct this, but how much? I >>>>>adjusted them to the same length as the stock control arms and >>>>>obviously that is not correct.>>
		Add comment


L . W . Hughes III 6 April 2005 01:02:52 [ permanent link ]
	Hi Dennis, It's always going to be a compromise until you re-weld them, maybe switch to Real hubs, and bearings at the same time: http://77cj.littlekeylime.com/Mr.N44.htm or http://www.trailhed.com/d44.html God Bless America, Гџill O\|\|\|\|\|\|\|O mailto:LWHughes3rd@aol.com http://www.billhughes.com/ Dennis Cox wrote:> ok, I adjusted the eccentric bolt on the lower control arm and got enough> adjustment out of it to make the steering "feel" better. When I get some> time, I'll adjust the LCA longer so I can move the eccentric back to center.> Thanks for all of your advice.> Dennis
		Add comment


Dennis Cox 6 April 2005 01:25:26 [ permanent link ]
	pardon my ignorance Bill, but huh? Is this one of your "real jeep" cracks? "L.W. ("Яill") Hughes III" <billhughes@cox.net> wrote in message news:4252FCFC.94C71F73@cox.net...> Hi Dennis,> It's always going to be a compromise until you re-weld them, maybe> switch to Real hubs, and bearings at the same time:> http://77cj.littlekeylime.com/Mr.N44.htm or> http://www.trailhed.com/d44.html> God Bless America, Яill O\|\|\|\|\|\|\|O> mailto:LWHughes3rd@aol.com http://www.billhughes.com/> Dennis Cox wrote:>> ok, I adjusted the eccentric bolt on the lower control arm and got enough>> adjustment out of it to make the steering "feel" better. When I get some>> time, I'll adjust the LCA longer so I can move the eccentric back to >> center.>> Thanks for all of your advice.>> Dennis
		Add comment


L . W . Hughes III 6 April 2005 01:37:43 [ permanent link ]
	Just a suggestion, and only if you want to play with the big boys: http://www.billhughes.com/pismo.htm God Bless America, Гџill O\|\|\|\|\|\|\|O mailto:LWHughes3rd@aol.com Dennis Cox wrote:> pardon my ignorance Bill, but huh? Is this one of your "real jeep" cracks?>
		Add comment


Paul Keating 6 April 2005 05:15:31 [ permanent link ]
	Dennis Cox wrote:> thanks, I'll try that. You state to put the axle on stands, does it help to > have the frame supported as well? If you don't, the Jeep will fall on the ground. ;o) Are there any tricks to getting the LCA's > reinstalled after each adjustment? Make sure both sides are adjusted the same, so you aren't twisting the housing.....then push them into place with a bottle jack undere the pumpkin snout. Paul
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Paul Keating 6 April 2005 05:17:21 [ permanent link ]
	When you're finished with the adjusting, get a buddy with a welder to tack weld the eccentric cams in place....they have a habit of coming loose at the worse possible time. Paul Dennis Cox wrote:> ok, I adjusted the eccentric bolt on the lower control arm and got enough > adjustment out of it to make the steering "feel" better. When I get some > time, I'll adjust the LCA longer so I can move the eccentric back to center.>
		Add comment


Mic Canic 6 April 2005 05:45:27 [ permanent link ]
	take it bac were they did the alignment tell them it it pulls not drift they will blame the tires, unless of course you rotate the tires before you go bac then have them explain thier actions Dennis Cox wrote: The lower bolt is one of those whachamacallit bolts. It was a pain to> reinstall it the first time I installed these LCA's. The upper bolt was> easier than the lower is why I was thinking I would unbolt it. Then I could> twist the LCA to lengthen it and reinstall the upper bolt and recheck angle> again.> If I'm way off on my ideas here, please tell me. I'm not extremely> mechanically inclined, although I can follow directions most of the time. > Thanks,> Dennis> "Steve" <xjlifter@bogus.com> wrote in message> news:7yi4e.10139$Ln.455301@ursa-nb00s0.nbnet.nb.ca...> > Can't you leave the upper bolt connected and turn the lower half to> > adjust? Either way, support the frame.> > Another way to measure relative caster without getting inside the knuckles> > is to put the angle finder on the flat surface that the front diff cover> > mounts to. Do this on a flat surface while the vehicle is unsupported.> > Steve> > http://xjeep.dyndns.org> > Dennis Cox wrote:> >> thanks, I'll try that. You state to put the axle on stands, does it help> >> to have the frame supported as well? Are there any tricks to getting the> >> LCA's reinstalled after each adjustment? They were a pita to install the> >> first time. Very tough to line up those upper bolt holes.> >> Thanks,> >> Dennis> >> "Steve" <xjlifter@bogus.com> wrote in message> >> news:yXh4e.10093$Ln.455301@ursa-nb00s0.nbnet.nb.ca...> >> Put the the axle on stands and measure the caster by placing an angle> >>>finder on the bottom of the inner knuckle. Increase the length of your> >>>LCAs in small increments until the the knuckle is 3-6 degrees. This tips> >>>the pinion down, so only set as much positive caster as you need to> >>>regain steering control.> >>> Steve> >>>http://xjeep.dyndns.org> >>> Dennis Cox wrote:> >>> I have searched the web for any sites out there that detail how to> >>>>adjust caster on a lifted TJ. But no luck so far. Does anyone have a> >>>>good site or can you briefly 'splain it to me? After lifting the TJ and> >>>>getting an alignment, it still wanders all over the road indicating> >>>>negative caster (or is it positive). I believe that I can adjust the> >>>>lower control arms to be longer to correct this, but how much? I> >>>>adjusted them to the same length as the stock control arms and obviously> >>>>that is not correct.> >
		Add comment




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TJ Caster adjustment

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