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  #49  
Old 06-11-2012, 11:08 AM
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Re: DIY WK spring install-use for shocks and struts as well

So I used this chart, which is SAE to metric, and retest my 11/16th wrench. The open end did not fit, but the box end did!!! So tried another wrench and it worked fine. I have to remove the wheel to test my sockets now. But this raised another question? Is my 18mm wrench wrong too??? Now I understand why premium tools cost so much....


EDIT: 18mm is correct size. And the little hex nut at the end of the ball joint is 8mm
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  #50  
Old 06-12-2012, 10:03 AM
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Re: DIY WK spring install-use for shocks and struts as well

I had a curiosity question? While most agree that the SRT springs will fit into a stock WK suspension, I was wondering why the SRT front suspension uses a different steering knuckle and lower control arm? Do these SRT pieces sit lower to change the resting position of the Upper Control Arm (UCA)? I have noticed in the photos of lowered springs the UCA points up higher than with stock springs. Does it lose it's range of motion or suffer more wear and tear from being lowered? I don't think this would deter me or others, but I just like to know how stuff works.

Also, do I need to use loctite blue on the ball joint nut? I've noticed a gray material around the threads which leads me to wonder if the factory used thread lock adhesive. Also on the sway bars in the rear I've seen a white material on the bolt threads. Same story, or is that something else? I'm doing my homework now, while I save my $$$ to lower my WK.

Edit #1: The SRT LCA is for mounting brembo brakes
Edit #2: UCA for Srt is same as non-srt. JBA makes an aftermarket UCA for those who have alignment issues and its extra heavy duty. Only $450 for a set!
Edit #3: Loctite is not needed, the ball joint uses a nylon nut to resist vibrations.
Edit #4: Never did figure out what the white stuff was, but it reminds me of teflon. Anti-Seize???? Have no idea.
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  #51  
Old 06-13-2012, 07:12 PM
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Re: DIY WK spring install-use for shocks and struts as well

Yep, 18mm.
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  #52  
Old 06-19-2012, 12:26 PM
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Re: DIY WK spring install-use for shocks and struts as well

Quote:
Originally Posted by TimmyB View Post
Yes, I am only changing the springs. I bought a "clam shell" type spring compressor, but the arms of it wont fit between the upper coils on the fronts. Only the bottm 3 coils are set wide enough to fit them in. How much do they have to be compressed to get the nut on the strut all the way? And what type of compressor do you use? I was thinking just taking them out and going to a shop to have the springs done, save me money doing most myself. The jeep dealer near me quoted 4 hours labor, and they do not like installing parts I didnt buy from them. he even asked why on earth i'd want my WK lowered, saying most want them jacked up. I asked him if he ever heard of the srt8 and he said i should of bought that then if thats the look I want. What an a-hole.
What a dick, some dude asked me the same thing I told him bro...i would destroy this..then he went on saying how the rubicon stock will get out of any situation I drive in...my 99 trug has dent marks on the roof and tree branch beat downs for a reason lol dealership coke heads = boo!
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  #53  
Old 06-24-2012, 09:58 PM
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Re: DIY WK spring install-use for shocks and struts as well

On the stock setup, the strut shaft projects 1.5 inches from the upper strut mount. Since these eibach springs lower the car 1.5 inches, should I have the strut shaft project 3 inches from the upper strut mount, so the valving in the strut stays in the same range and doesn't risk hittin the internal bump stops?
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  #54  
Old 11-11-2012, 08:42 PM
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Re: DIY WK spring install-use for shocks and struts as well

OK, I need some help here. I set out to lower my jeep today. I only finished the front left and the height increased 1/4"! I am assuming that the sway bar is holding it up, so I'm not gonna worry till I finish the otherside. WOW, I had a hell of mess today though. Everything went smooth until I went to reinstall the nut that connects the UCA ball joint to the steering knuckle. I couldn't get the nut to thread on enough to get my wrench on the hex bolt on the ball joint. I was following DIY instructions from the other website and using a 5/16" wrench. After several attempts I finally got it to bite, but the wrench kept slipping. Then I realized I was rounding off the hex nut and couldn't get any grip to tighten the nut on. Then I realized I couldn't get it off either! I tried vise grips, but that rounded the nut worse. Then I drilled a hole through the nut and tried to put a screw driver in to jam the ball joint up so it wouldn't rotate. But I just broke the screwdriver in half. I tried a few other things, but nothing worked. Then I decided to find a socket in metric, with the intent of pounding it on if necessary, and discovered 8mm a perfect fit! WTF was I using a 5/16" if 8mm was the correct size??? Well that's my fault for assuming someone else's write up was accurate. So I got the nut off, drilled the nylon out and reassembled it with blue threadlock. How do I get the nut back on without drilling out the nylon???? I feel like I"m overlooking something obvious, but the hex nut is too short to get a hold of. Anyone else have this experience or any good ideas. I"m gonna tackle the otherside tommorrow.

Edit: The nut for the top of the struts looks the same as the nut for the ball joint. I mixed them up and they were not the same thread type. I mildly damaged the threads and that was the real culprit. I was more careful on the otherside and had no problem with reassembly. I plan to get new nuts for the ball joints and thread die (for the damaged threads) to go back and redo both sides with new nuts. Otherwise, all is good. Just be sure to use 8mm.
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  #55  
Old 11-12-2012, 11:08 PM
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Re: DIY WK spring install-use for shocks and struts as well

OK so I finished the front and back today. It took 15 hours to do the whole job by myself. The job went pretty smooth. Minor hiccup was the other strut did not want to surrender the spring and broke the hex tip off. I should have used "brake free". Reciprocating saw liberated the coil and strut mount, and sent the old strut to the garbage. In the rear everything went great till I had to reattach the rear sway links. The links call for 90 lbs of torque, but it has pinch nut (ovalized for tightness) and the end of the link uses a torx socket. Well, I broke two T-40 sockets around 60 lbs of torque. HOW DO YOU TIGHTEN THESE???? And don't say impact tools, because the gas tank makes the drivers side a knuckle buster.

All that said, I only dropped 1/4" all around on srt coils and srt bilsteins. I'm a bit confused. It drives great. Steering feels lighter, braking feels firmer, acceleration grips off the line more efficiently and the ride is firm but not harsh. I am very pleased with driving manners. But I expected a more dramatic drop. I have two theories. 1) I have a 2wd and weigh 400 to 500 lbs less than a srt. 2) I made a mistake in my before measurements on all 4 wheels... Meh.
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  #56  
Old 11-13-2012, 10:52 AM
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Re: DIY WK spring install-use for shocks and struts as well

Quote:
Re: The complete (05-10) WK Grand Cherokee suspension thread
Quote:
Originally Posted by jasonjsl
Alright guys,

I have just installed a set of srt bilsteins front and rear with a set of bwoodys...It seems as if something is not right with the fronts because the front bumpstop now sits right on top of the actual strut . It looks like there isnt any travel allowed between the front strut and the bumpstop...its very tight. after im done typing this i will go get some pictures to post. Does anyone have any pictures of the same set up im talking about for comparison? heres what ive got for measurements before an after, keep in mind i have a 2wd and a tow package:

before After

Front left- 18.5" 17.75"
front right- 18.5" 17.50"

Rear left- 19.50" 17.50"
Rear right- 19.50" 17.50"
(measured from center of axle to top of wheel well)

So it looks like I gained a 1" drop in the front and 2" in the rear. I got the bwoodys from modern horsepower. The package came marked as bwoody/roadmagnet and came with the upgraded bumpstops for the rear. I have an email into mhp to see which version these are and the advertised drop.Any help would be greatly appreciated!


Quote: ESCAPE:

Ride is awesome and it looks a lot better too now!

Stock height with towing package (measured from hub center to fender)
Front: 18.5
Rear: 19.5

Lowered height with SRT8 version 2 Roadmagnets, SRT8 Bilsteins (measured from hub center to fender)
Front: 17
Rear: 17 1/4

Only drove it for an hour or so after the drop so she should settle in a bit more.

So I lowered my jeep today. 2wd with tow package. I used SRT coils and SRT bilsteins. I only dropped 1/4" all around. I thought this was weird, until I read up and saw that guys with SRT bilsteins and bwoody's/road magnets only dropped an 1" in front and 2" in the rear. So maybe this is normal. Maybe the SRT8 Jeep is only 1/4" shorter than a wk??? Then these number make sense.


EDIT: I remeasured this morning. 1/4" drop in the front, 1/2" drop in the rear. What I need is someone to measure a stock height SRT8 Jeep and post the results here.

After Lowering
Front:
From center of wheel to Fender: 18.5"
From ground to Fender: 32.0"
Rear:
From ctr of wheel to Fender: N/A
From ground to Fender: 32.25"

Thanks.

BTW: Shouldn't this thread be a sticky or is it in the DIY section?
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  #57  
Old 11-13-2012, 11:14 AM
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Re: DIY WK spring install-use for shocks and struts as well

the Jeep SRT is 1" lower than the wk. If you notice...some of those guys are SRT's....so the SRT lowering springs lowered them only 1" and so on. You can add another inch for the wk nonSRT. No idea if maybe your WK is different where its a 2wd. maybe some settling over the next week or so to get you an inch.
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  #58  
Old 11-13-2012, 11:53 AM
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Re: DIY WK spring install-use for shocks and struts as well

Well, that's what I expected, but I did my reading, and "jasonjsl" has a 4.7 2wd with tow package (most simialar to mine) and the bwoody's only dropped him 1" in the front and 2" in the rear. He should have dropped 2" in front and 2.3 (or 2.7) in the rear based on this logic. Now the resistance of the srt8 bilstein is a non linear variable, and I am beginning to question the drop numbers. Take "ESCAPE" for example, he has a 5.7L with 4wd, and he dropped 1.5" in the front and 2.25" in the rear. Closer to expectations, but I'm thinking -1-1 does not equal -2 for the front, because the bilsteins have their own resistance that raises them a bit. So what I really need is for guys who had 2wd wk's who did the same mod as me to share their numbers. I understand my wk weighs 450 lbs less, especially over the front w/o 4wd. I just want to figure this out and document it for others who may have the same experience.

And I do agree, there should be more settling, but last night I took a 15 mile romp to the top of Mt Baldy and back (which I must admit the handling is now awesome, not sports car yet, but for a heavy SUV, awesome!). I will certainly update after I finish off this tank of gas.
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Old 01-29-2013, 03:10 PM
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Re: DIY WK spring install-use for shocks and struts as well

Exactly my problem!!

Yes, I installed the SRT Bilsteins with SRT Springs and my WK looked like it had gone up! Weeird so I said hell no I want it lower so I read that Roadmagnets are the lowest, so I got some installed this past weekend and guess what? a very minute diference... it was like I gave 350$ to someone over the phone for a replacement set! I was mad now after a week of driving I can see a little difference where my WK is actually a bit lower, just about the same measurements in the last table so I wondered if the installation was WRONG! was I suppose to compress the struts in front with a compression tool? if I was suppose to why was I able to reach the threads really easy? its really beginning to drive me crazy and my gap is not as low as I wanted it!

So whats next? do I compress the springs? do I take off the isolators? do I buy bigger tires? what is my best bet

Please help! mine is also a WK towing package 3.7

thanks!
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Old 01-29-2013, 11:27 PM
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Re: DIY WK spring install-use for shocks and struts as well

Quote:
Originally Posted by noriegastudio View Post
Exactly my problem!!

Yes, I installed the SRT Bilsteins with SRT Springs and my WK looked like it had gone up! Weeird so I said hell no I want it lower so I read that Roadmagnets are the lowest, so I got some installed this past weekend and guess what? a very minute diference... it was like I gave 350$ to someone over the phone for a replacement set! I was mad now after a week of driving I can see a little difference where my WK is actually a bit lower, just about the same measurements in the last table so I wondered if the installation was WRONG! was I suppose to compress the struts in front with a compression tool? if I was suppose to why was I able to reach the threads really easy? its really beginning to drive me crazy and my gap is not as low as I wanted it!

So whats next? do I compress the springs? do I take off the isolators? do I buy bigger tires? what is my best bet

Please help! mine is also a WK towing package 3.7

thanks!
Ok, lets cover a few variables here. Are you 2wd or 4wd? How many miles did your original coils have (wk stock?)? What were your before measurements numbers? When you installed the srt coils, were they brand new coils? What were your after measurement numbers? When you installed the road magnets, what were your measurement numbers (always measure from center of hub to fender)? Did you remeasure after a week to account for settling?

I do not recommend removing the isolators... bad idea. Bigger tires would technically lift you, but they would fill the fenders.

The lowering coils require very little if any compression, they are 2 inches shorter than the stock coils.
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