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Post by difflock on Nov 3, 2004 3:33:58 GMT -5
I do not recommend any wheel spacer to be instaled because it overstresses the hub bearings and unless it is precision machining, it will create vibration. Both phenomenas will be amplified by the increase of the tire radius. As much spacer are acceptable on small racing cars running 28 inch tires max, as much they will just destroy your drivetrain on 33 inhces and over. Only exception to my statement is if the spacer are fitted on full floating axles i.e. Dana 60 - 70 but very few truks have such heavy duty axles.
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jeep5007
New Board Participant
JEEP 4 LIFE
Posts: 30
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Post by jeep5007 on Nov 4, 2004 13:47:51 GMT -5
Wasaaaaap Guys.. ;D
Well , i have lifted my Jeep Wrangler 2" and touch wood had no vibrations what so ever.
The reason i chose 2' Over 3" was cause i didnt wana lower my transfer case.
I have 31" BF Goodrich K.O
As fas as the Desesrt is concerned, i happy with my Baby.
I have installed also a K&N FIPK kit, Warn Bumper an so on.
Regards to Engine bay, only thing as i mentioned K&N..
She perfomes Sweeeeeeeeeet ;D
I will slap Headers complete Kit in once i find the right one that suits me.
I havent modified my Shocks as i dont like the ranchos as its common, so im also taking my sweet time to search for the rights one 2 ;D
If you need to know any more regards to what i have done in detail, please feel free to ask..
By the way i would fire up a Pic in the fourm but havent figuerd how yet ..
Regards
Jeep 007
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Post by Fouad Berjaoui on Nov 4, 2004 14:22:31 GMT -5
Go to this website : picsplace.to/index.phpUpload your pic, as soon as you click upload, it will give you a link to your image, copy/paste the link on the forum Fouad
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jeep5007
New Board Participant
JEEP 4 LIFE
Posts: 30
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Post by jeep5007 on Nov 4, 2004 20:41:09 GMT -5
Thanx Fouad ;D Ok her are 2 recent pics i took and since i know now how to upload ill get some more in the coming days.. ;D Got my new Bikini on, Just in the pipe line on getting my Headers.. My Jeep is a Sport Extreme, a few changes then the normal Jeep as in Interior & Exterior.. Ill get them fired up so you get a closer look ;D Ill get some more done, on a better camera, as this was taken from my Phone..
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Post by Fouad Berjaoui on Nov 5, 2004 2:25:40 GMT -5
Nice those are the same tyres I have , you have to deflate down to 10 at least to get the max out of them, I usually delate to 8, sometimes 5 if the terrain is too soft. Dont worry they dont come off the rim. Ihave had them for 2.5 years now, and they never came off the rim. Specially if you're driving a Jeep, your Jeep is 1.5 ton, my car is 1.8 ton. Fouad
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Post by Jambolana on Nov 6, 2004 6:30:24 GMT -5
Nice ride Jeep 007. Difflock, thanks for the advice, although I get your comment about the precision machining and the unbalance it would generate (just like a newly fitted tyre needs a couple of grams here and there), I don't get your point about the spacer.
The way i see it is my rims have an certain offset between the inner and outer edge of the rim and the flush face in contact with the brake drum/disc. The offset x weight of the car/4 is the moment acting on my bearings. Now supose I put a spacer (which will increase the moment thus the load on the bearings I agree) or change the wheel for one with a larger outward offset like M.Thompson's then the acting moment on the bearing will be the same in the two scenarios. Please enlighten me if I got this wrong.
Do you suggest I go for different wheels to correct my rubbing problem?
Thanks for your time
Jambo
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Post by difflock on Nov 6, 2004 7:06:20 GMT -5
You are correct, changing stock rims for widder rims with a different off-set like the MT will put much more stress on your bearings. The moment is defined by the measurment from the bearing race the centre of the tire foot print no matter the shape of the drum, hub or rim....Even more, in the front, the factory off set is computed in the steering angles, changing the factory off set will....off-set your steering angles. Do not use wheel spacers unless you vehicle is very light or your hubs are turning on two bearing races, separated at least by one inch or more from each other.
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Post by Jambolana on Nov 7, 2004 10:08:42 GMT -5
Difflock,
We agree on the principle, but then what have guys like Jeep007 done about this.
Is a wrangler bearing set tough enough to cope with offset rims or are these guys looking for trouble in the near futur?
Jeep has brought out the Comanche 2 special edition wrangler. Im not sure about tyre width but they are definitely not stock (MT rims and tyre). Do you think Jeep has gone to the effort of upgrading the bearings?
Thanks for the info
Jambo
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Post by difflock on Nov 7, 2004 10:32:52 GMT -5
No, Jeep did not upgared anything. A manufacturer upgrade ususally remains within acceptable limits. On tires, they will just go one size bigger, wider or taller...not more. Now all depends on your duty cycle. That is the key. A 4x4 has a specific duty cycle and the car is build around that specific duty cycle. A Patrol duty cycle is much more tuff as a BMW X5 but not as tuff as a Hummer. So each vehicle has its own parameters. Now let's say you have a Hummer (tuff duty cycle) and you only use it on road and empty, there is a good chance you could upgrade your tire by 4 or 5 sizes before reaching any limit. If you have a vehicle with a light duty cycle X5 or Cayenne and you use it always of-road and always at the maximum weight, you will brake it before the end of its warranty and with the factory tires, so I don't even want to talk about upgrading tire suize on those. Manufacturer will assume that 90% if not more of the buyers will never go off-road. They keep the duty cycle somewhat on the light side for cost efficiency, figuring that the few buyers going heavy offroad in the 10% actually offroad will be just about 1% of the total buyers. So even if that 1% destroyes the car and comes back for a warranty job every week end, the manufacturer still made much more money by saving cost in building 99% of the other vehicles with less reliability as what they should have been....So, if jeep unpgrades a TJ wheels from 30 inches to 31 inches, it will attract 99% of harmless sunday afternoon 4x4 drivers and only put thye product at risk for 1 car sold every 100....Given that equation, it makes sense for a manufacturer to attract buyers, taking advantage of the ods and statistics.
Back to the Wranglet. Any thing over 2 inches in added offset will destroy your bearing if you use the vehicle in a normal duty cycle it has been made for: about 50% highway, 40% track, 10% crawling and loaded at an average of 50% of its GVW. Now this numbers are ok for the TJ but will not be the same for another vehicle. Do not count on the manufacturers to release the duty cycles for each vehicle they have...it is top secret as it would create a real comparison benchmark between the manufacturer.....
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Post by Jambolana on Nov 8, 2004 0:30:22 GMT -5
Thanks Difflock, cristal clear
Jambo
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Post by Jambolana on Nov 8, 2004 0:34:16 GMT -5
Difflock,
Unfortunately for you, you are very knowledgeable and therefore everyone is asking for your advice. I you have five minutes could you address my issue in the nissan section - my nissan needs help thread. I would be very grateful
Thanks
Jambo
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2Fast2Furious
Senior Board Participant
HUMMER H2; Jeep Wrangler Rubicon; both modified, Check my site for more details
Posts: 161
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Post by 2Fast2Furious on Nov 30, 2004 2:59:41 GMT -5
I must agree with most of you guys here. Experienced my Jeep lift and my H2 lift.. True about lift kits and clearance and very true about tire sizes divided by two (see my 40" tires compared to stock 35) . The case which is more scary here is "whose doing the job for you?" are those people experienced enough to do it right from first time? this is the big challenge and I'd rather not to post service centre names here as that might hurt some. My newly installed R&P went busted only after a week !!! Ask me and I will tell you the full story. Be careful and chose the good guys for these jobs..
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2Fast2Furious
Senior Board Participant
HUMMER H2; Jeep Wrangler Rubicon; both modified, Check my site for more details
Posts: 161
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Post by 2Fast2Furious on Nov 30, 2004 3:09:59 GMT -5
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jeep5007
New Board Participant
JEEP 4 LIFE
Posts: 30
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Post by jeep5007 on Nov 30, 2004 6:26:29 GMT -5
;D Hi guys..
Wasap difflock, thanx for your feed back..
Just wanted to update you all on me JEEP.
Well as you can see from the pics that i posted i had bought 8 inch rims for my Jeep, but only lasted 1 week.
As i couldnt forgive myself for removing the original rims that she was born with.
So i took them off and put back her original shoes and aint gonna try or buy any other and just stick with the Original classic look.
Just a question for Diff..
Jeep decided to sell me the " RUBICON " package as in tires & wheel cover.
So they wrapped 31" 10.5 BF Goodrich KO on my baby.
Will that harm or do any damages in the long run?
Also another question that i really need to know is , what are the lightest and best for our desert?
Regards
Jeep007 ( khalil )
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Post by difflock on Nov 30, 2004 8:22:58 GMT -5
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