CJ7 Clearance Question - JeepForum.com
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post #1 of 11 Old 08-23-2017, 05:12 PM Thread Starter
Phil_Andersen
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CJ7 Clearance Question

I just aquired a 1977 CJ7 with the 304 in it. I want to run 35's under it but I do not think that a 4.5" lift with a 1" body lift will get me the clearance. Would it help if I went with like a tube fender then widened the stance some by using a 10" rim with a 3.5 backspace?


TYIA
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post #2 of 11 Old 08-23-2017, 09:12 PM
BagusJeep
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A tube fender at the front would clear a 35" tyre with no lift. The rear however will not, the wheelbox is just not big enough. When you lift the body, the clearance improves to the wheelbox, whether you ever make contact depends on your wheel articulation, which can be limited by bump stops.

Most people seem happy enough with 35" tyres and a 4.5" lift and 1" body lift. With a larger lift you will have some steering work to do in order to make it driveable, the drag link needs to be parallel to the other parts of the steering and not steeply raked to avid bump steer etc.

With 35"tyres you may want to consider changing axles, the Dana 35 front will not last long in serious off roading with a 35" tyre, the rear AMC20 will need modifying or replacing.

You could widen the stance. Bagusjeep has a wider stance but just using wheel spacers, this then requires wider flares to avoid mud and rocks being thrown up. It does however allow some adjustment to get a tighter turning circle.

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post #3 of 11 Old 08-23-2017, 10:28 PM
fromme
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Widening the wheel or using spacers won't help you fit 35s. A tube fender might help a bit in the front depending on the brand. The rear will require a sawzall and TJ flares. Your M20 rear axle is fine and will hold up contrary to what was said above but you'll want the once piece axle shafts and possible weld the tubes to the center section. The front D30 is also fine for 35s.

"The Wicked Flee When No Man Pursueth, But The Righteous Are Bold As A Lion."
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post #4 of 11 Old 08-24-2017, 04:03 AM
JeepNut84
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I ran 34"s for a little while on one of mine. Had a 4" lift with extended shackles, TJ flares with minor trimming... 2 piece axle shafts were not happy after about a month!
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post #5 of 11 Old 08-24-2017, 09:39 AM
jeepdaddy2000
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Quote:
Originally Posted by Phil_Andersen View Post
I just aquired a 1977 CJ7 with the 304 in it. I want to run 35's under it but I do not think that a 4.5" lift with a 1" body lift will get me the clearance. Would it help if I went with like a tube fender then widened the stance some by using a 10" rim with a 3.5 backspace?


TYIA
Phil Andersen
What might help is letting us know what your going to do with your CJ.

35's are a lot of meat under there and even with the 7, can cause some drivetrain, steering, and gearing issues. If it is a mall crawler and mild wheeler, then you may be able to get away with some things, but if you want to go out in the desert and try some serous work, I would recommend running 33's instead. They are a lot friendlier on the road and modifications to run them are a lot simpler.

bazinga
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post #6 of 11 Old 08-24-2017, 11:48 AM Thread Starter
Phil_Andersen
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Cool, thank you all for your quid all your help. I can see where a money savings and hassle savings would come into play by just running 33's. I do wheel but not a lot. Work has me busy these days. My weekends consist of tinkering with my jeeps. I just finished with a YJ I just got. Run 35's Cepeks on that. Thank you again for all your help.
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post #7 of 11 Old 08-24-2017, 12:17 PM
Fourtrail
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Tube front fenders, rear wheel arch opened up from the top back, 4" lift and 1" heavy duty shackle. Widetrack axles and 35's on stock wheels. 1 piece rear shafts and yukon chrome moly front shafts. We would deform and pop a front ujoint every year or two, but no problems in the last 2 years with the chromo's/bigger ujoint. 258, T-4(ticking time bomb that won't go off), dana 300, dana 30 front and model 20 rear, 4.88 gears, 35X12.50-15 TSL's.




80 CJ-5, 74 CJ-6, 56 CJ-5
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post #8 of 11 Old 08-24-2017, 09:56 PM
fromme
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Quote:
Originally Posted by jeepdaddy2000 View Post
What might help is letting us know what your going to do with your CJ.

35's ... They are a lot friendlier on the road ...
That's preposterous, 33s, 35s, 40s, are no different on the road that 28" all seasons if you know how to set things up build steering right.

"The Wicked Flee When No Man Pursueth, But The Righteous Are Bold As A Lion."
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post #9 of 11 Old 08-24-2017, 10:44 PM
Fourtrail
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Originally Posted by fromme View Post
Widening the wheel or using spacers won't help you fit 35s. A tube fender might help a bit in the front depending on the brand.
Offset wheel and/or spacers will help keep the tire from rubbing the frame/spring/inner fender. They are needed with narrow track axles. Fit is more than clearing the fender lip.

Quote:
Originally Posted by fromme View Post
That's preposterous, 33s, 35s, 40s, are no different on the road that 28" all seasons if you know how to set things up build steering right.
Steering wise maybe, but making it motivate in a forward direction and getting it to stop require a few more mods than just good steering.
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80 CJ-5, 74 CJ-6, 56 CJ-5
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post #10 of 11 Old 08-25-2017, 09:22 PM
jeepdaddy2000
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Quote:
Originally Posted by fromme View Post
That's preposterous, 33s, 35s, 40s, are no different on the road that 28" all seasons if you know how to set things up build steering right.
35's and 40's have a LOT of sidewall. This means more flex, especially with the lower tire pressures we run due to the CJ's lighter weights. It also means a lot more out of balance and out of round carcasses. Throw in the added lift and higher center of gravity needed to get these under the rig and you don't have the same steering capabilities that a stock rig running 28's would have.

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post #11 of 11 Old 08-25-2017, 11:29 PM
schardein
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I run 2.5" lift springs, 1" body lift, 5/8" lift shackles, tube front fenders and rear TJ flares and fit 35-12.50-15s on 15x8.5" beadlocks. It gets wheeled hard. Front rubs slightly at the back of the fender well under extreme articulation and the wheels other than straight ahead.
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JJUSA Tenn 2010 123 crop_zpsfkfuco9b.jpg   Jeep.jpg  

1983 CJ7, 5.3, NV3550, D300 4:1, Fr D44 Detroit, Rr D44 OX, 4.56, 35" SSTs on beadlocks
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