bigalpha Posted September 15, 2009 Share Posted September 15, 2009 I've noticed that my LWB MJ has a signifcantly wider turning radius than my XJ. Does the SWB have the same turning radius as an XJ? Is it normal for my LWB to have such a wider turning radius? Link to comment Share on other sites More sharing options...
LoTGoD Posted September 15, 2009 Share Posted September 15, 2009 Think about it for a minute. The distance between the front and rear tires is further on the LWB as opposed to the SWB or the XJ, thus making the radius to complete a complete circle that much greater. The SWB will also have a greater turning radius than the XJ because the wheelbase is longer. Even if you could theoretically keep the rear wheel in the exact same place during a turn, the diameter of the circle you are turning would be wider in order of vehicle. Link to comment Share on other sites More sharing options...
bigalpha Posted September 15, 2009 Author Share Posted September 15, 2009 Well I get the concept behind the science of turning radius. I was basically looking to verify that the TR of the LWB is actually significantly wider than the XJ and SWB. Since this is my first MJ (LWB at that), I wanted to know. Link to comment Share on other sites More sharing options...
NWPhotog Posted September 15, 2009 Share Posted September 15, 2009 LWB Comanche is still pretty tight. Try an Extended Cab Toyota. You might as well be driving a semi! Link to comment Share on other sites More sharing options...
bigalpha Posted September 15, 2009 Author Share Posted September 15, 2009 LWB Comanche is still pretty tight. Try an Extended Cab Toyota. You might as well be driving a semi! Ha. We have a Chevy 2500HD 4dr, extended bed. it's as long as a school bus. Link to comment Share on other sites More sharing options...
Xacto Posted September 15, 2009 Share Posted September 15, 2009 According to the ConsumerGuide buying guide for 89: Turning Diameters... MJ-SB 38.9' MJ-LB 41.3' XJ 35.7' Link to comment Share on other sites More sharing options...
bigalpha Posted September 15, 2009 Author Share Posted September 15, 2009 According to the ConsumerGuide buying guide for 89: Turning Diameters... MJ-SB 38.9' MJ-LB 41.3' XJ 35.7' Thanks. At least I'm not going crazy. Link to comment Share on other sites More sharing options...
LoTGoD Posted September 15, 2009 Share Posted September 15, 2009 According to the ConsumerGuide buying guide for 89: Turning Diameters... MJ-SB 38.9' MJ-LB 41.3' XJ 35.7' So my lame attempt at a diagram wasn't too far off??? :cheers: :yes: Link to comment Share on other sites More sharing options...
bigalpha Posted September 15, 2009 Author Share Posted September 15, 2009 According to the ConsumerGuide buying guide for 89: Turning Diameters... MJ-SB 38.9' MJ-LB 41.3' XJ 35.7' So my lame attempt at a diagram wasn't too far off??? :cheers: :yes: Well, it depends. The LWB has a 15% wider turning radius than an XJ. The SWB has a 9% wider turning radius than an XJ. The LWB has a 6% wider turning radius than an SWB. According to your diagram (roughly) The LWB has a 90% wider turning radius than an XJ. The SWB has a 60% wider turning radius than an XJ. The LWB has a 20% wider turning radius than an SWB. At least, that's if I've done my math right. Link to comment Share on other sites More sharing options...
LoTGoD Posted September 15, 2009 Share Posted September 15, 2009 Well, it depends. The LWB has a 15% wider turning radius than an XJ. The SWB has a 9% wider turning radius than an XJ. The LWB has a 6% wider turning radius than an SWB. According to your diagram (roughly) The LWB has a 90% wider turning radius than an XJ. The SWB has a 60% wider turning radius than an XJ. The LWB has a 20% wider turning radius than an SWB. At least, that's if I've done my math right. touche` Link to comment Share on other sites More sharing options...
bigalpha Posted September 15, 2009 Author Share Posted September 15, 2009 Well, it depends. The LWB has a 15% wider turning radius than an XJ. The SWB has a 9% wider turning radius than an XJ. The LWB has a 6% wider turning radius than an SWB. According to your diagram (roughly) The LWB has a 90% wider turning radius than an XJ. The SWB has a 60% wider turning radius than an XJ. The LWB has a 20% wider turning radius than an SWB. At least, that's if I've done my math right. touche` I'm sometimes a little :nuts: :cheers: Link to comment Share on other sites More sharing options...
freakjeep93 Posted September 16, 2009 Share Posted September 16, 2009 a little ................... just kidding Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 16, 2009 Share Posted September 16, 2009 Another reason why all XJs and MJs have a rather wide turning radius relative to their wheelbase is because of the internal stops built into their stock OEM Saginaw steering gear boxes. The box is limited by these stops to an 80 degree pitman arm arc stop-to-stop. When I swapped in a 96 ZJ steering gear box that has an 87 degree pitman arc, plus a quicker turning ratio (12.7:1 vs. 14.1:1 on the old box), I also got a much tighter turning radius. And did not have to touch the axle stop nuts. Any mid 92 - 98 ZJ box will bolt into the MJ, and it's a super upgrade and highly recommended, especially if your stock box needs to be replaced. :D Link to comment Share on other sites More sharing options...
Darren Posted September 16, 2009 Share Posted September 16, 2009 I lost quite a bit in my turning radius with my waggy 44. Link to comment Share on other sites More sharing options...
MiNi Beast Posted September 16, 2009 Share Posted September 16, 2009 Another reason why all XJs and MJs have a rather wide turning radius relative to their wheelbase is because of the internal stops built into their stock OEM Saginaw steering gear boxes. The box is limited by these stops to an 80 degree pitman arm arc stop-to-stop. When I swapped in a 96 ZJ steering gear box that has an 87 degree pitman arc, plus a quicker turning ratio (12.7:1 vs. 14.1:1 on the old box), I also got a much tighter turning radius. And did not have to touch the axle stop nuts. Any mid 92 - 98 ZJ box will bolt into the MJ, and it's a super upgrade and highly recommended, especially if your stock box needs to be replaced. :D WHich I have one for sale and thinking perhaps I need to keep it? hummm :hmm: Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 16, 2009 Share Posted September 16, 2009 Yeah, keep it Mini. They are getting very popular with the old GM muscle car crowd. :D Link to comment Share on other sites More sharing options...
MiNi Beast Posted September 16, 2009 Share Posted September 16, 2009 Yeah, keep it Mini. They are getting very popular with the old GM muscle car crowd. :D sounds good, I was going to hydro assist set up but told not at this time need I worry about it, so was thinking the box which I ran with my last 37's i should keep. and well you talked me into it. :yes: Link to comment Share on other sites More sharing options...
mvusse Posted September 16, 2009 Share Posted September 16, 2009 Another reason why all XJs and MJs have a rather wide turning radius relative to their wheelbase is because of the internal stops built into their stock OEM Saginaw steering gear boxes. The box is limited by these stops to an 80 degree pitman arm arc stop-to-stop. When I swapped in a 96 ZJ steering gear box that has an 87 degree pitman arc, plus a quicker turning ratio (12.7:1 vs. 14.1:1 on the old box), I also got a much tighter turning radius. And did not have to touch the axle stop nuts. Any mid 92 - 98 ZJ box will bolt into the MJ, and it's a super upgrade and highly recommended, especially if your stock box needs to be replaced. :D :???: Both my MJ and XJ hit the steering stops on the axle long before I hit the end of the steering box. And the D30 can actually steer quite tight. Link to comment Share on other sites More sharing options...
johnj92131 Posted September 16, 2009 Share Posted September 16, 2009 As usual, Hornbord has posted a great, factual post. Only, (I think) two ways to tighten the turning radius. Shorten the wheel base or move the steering wheels into a tighter lock position. Not talking about a 4 wheel steering Moon Buggy built by NASA that could turn INSIDE its own wheel base. I will add that to my future upgrade lists. Then I can turn the truck around in the street without backing up. JJ 91 Long Bed Comanche, Base truck with Big Ton package, all heavy duty options from the factory! Original, Southern California Truck with no rust!! Link to comment Share on other sites More sharing options...
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