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Wheel backspace |
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Patrick H 
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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 Topic: Wheel backspacePosted: 18 Jan. 2015 at 5:44am |
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I've searched, but haven't found a definitive answer...What is the backspace on a stock 16" wheel for a CJ2A?
The Jeep has 15X5.5 wheels on it, but they aren't stock. They have 3 3/4" back space. I currently have 235/75R15 tires on it. I have a set of stock 16X6 wheels off of a '63 Gladiator, with 4 1/2" back space and have ordered a set of 215/85R16 tires for it. I already have some rubbing at the front tires on the leaf springs when turning hard. I'm afraid the 4 1/2" back space 16's will be too much back space and will rub worse than what I have now even though the new tires will be narrower. I'm also worried that it's going to look silly with the tires set in too far. Anyone know the back space on the stock 16's? Thanks!
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 18 Jan. 2015 at 6:18am |
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Never mind, I think I found my answer
http://www.thecj2apage.com/forums/cj2a-wheels_topic1294_page1.html I might have to put some 1.5" wheel spacers on it and see how it looks.
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48 CJ2A Lefty
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 18 Jan. 2015 at 6:19am |
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http://www.thecj2apage.com/forums/topic34114_post318884.html#318884
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48 CJ2A Lefty
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Mark W.
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Posted: 18 Jan. 2015 at 7:29am |
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Patrick your talking to yourself again!!! LOL
back spacing is one of those mysteries that sometime you just have to mount up a wheel and see how it turns. I have made profile cutouts from foam board to show where a tire and wheel combo will fit inside a cars fender well.
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Chug A Lug
1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962 |
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 18 Jan. 2015 at 4:00pm |
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Yeah, I know. I'm impatient. Tires will be here tomorrow.
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48 CJ2A Lefty
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Tin Badge
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Joined: 27 May 2011 Location: Clarksburg WV Status: Offline Points: 414 |
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Posted: 19 Jan. 2015 at 5:22am |
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If your getting your tires into the front springs just adjust the steering bump stops on the back of each knuckle so they do not contact the springs. You have already lost some turning radius and this will just help with keeping the tires from getting chewed up on the springs. It is a real simple process and helps to jack up the front end and get a friend to turn the steering wheel from lock the lock while you adjust the bolts out and reset the locking nut. Also you have to remember when figuring backspacing you have to also take into account the offset of the wheel. This video is really informative and if you google backspacing and offset conversion calculators there are a few nice ones on the web to help.
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Family Motto "If its not broken lets take it apart and lose some of the pieces and then it will be"
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 19 Jan. 2015 at 4:54pm |
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Yes, thanks. I know I can adjust the steering stops. Wheel offset really has no bearing in this situation; it's all bout back space and tire width. I'm not afraid to loose a little turning radius, but I don't want it to look goofy with the wheels set in too much. I'll probably end up with 1" wheel spacers. That'll put me just about 1/8" out more than stock 16's and scrub radius will still be acceptable.
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48 CJ2A Lefty
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 20 Jan. 2015 at 4:33am |
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Here it is with the Gladiator wheels, 4 1/2"back space, and 1 1/2" wheel spacers. 215/85R16 Dynapro MT's. I've ordered 1" spacers because I think they sit out a bit too much. Love the tires.
Never mind..Got to figure out how to post pics here.. Edited by Patrick H - 20 Jan. 2015 at 4:36am |
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48 CJ2A Lefty
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 20 Jan. 2015 at 4:44am |
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48 CJ2A Lefty
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Patrick H
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Posted: 20 Jan. 2015 at 4:55am |
  
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48 CJ2A Lefty
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otto
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Posted: 20 Jan. 2015 at 5:22am |
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That looks pretty good, I like the tires to be flush with the body. 15x6 CJ5 wheels have a 4" backspacing, and with 32 x 9.50 tires rub-a-plenty on the springs in my jeep. May have to get some spacers also.
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47 CJ2A w/fuel injected boat engine
48 CJ2A 64 Ford Econoline Travelwagon If you can't get there in a Jeep, get a motorcycle! |
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 20 Jan. 2015 at 5:26am |
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They stick out a bit, but I think 1" spacers will look good. I had these 1 1/2" spacers left over from my CJ5's. I had 4 Kaiser era CJ5's, one for over 15 years...
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48 CJ2A Lefty
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Tin Badge
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Posted: 21 Jan. 2015 at 6:52am |
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Heck I think it looks great now!!! Very Nice!
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Family Motto "If its not broken lets take it apart and lose some of the pieces and then it will be"
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Patrick H
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Joined: 10 Nov. 2014 Location: New Mexico Status: Offline Points: 89 |
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Posted: 21 Jan. 2015 at 11:02pm |
Thanks! I've actually been eyeballing your Jeep :) I think if you saw it in person you'd agree that 1/2" less wheel spacer would be better..I'll find out in a few days when they get here..
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48 CJ2A Lefty
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Thorholt
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Joined: 31 Mar. 2015 Location: MN Status: Offline Points: 52 |
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Posted: 31 Mar. 2015 at 1:16am |
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That is a very nice tire wheel combo Patrick! Can I ask you where you bought your tires? And do you think they will fit the stock 48 CJ2a 16" rims ok? I just got the jeep today and the fronts don't hold air so tires are the first on my to-do list so I can at least move it around with out airing the tires up every time, Thanks!
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Patrick H
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Posted: 31 Mar. 2015 at 3:25am |
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Discount Tire. They also have free shipping, and I mount and balance them myself so I don't have to pay for that.;)
They'll fit the stock wheels just fine. They are about an inch narrower than my wheels, but they will be fine.
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48 CJ2A Lefty
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Thorholt
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Posted: 31 Mar. 2015 at 3:37am |
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Thanks for the info!
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Tin Badge wrote: