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Discussion Starter · #1 ·
New RE 2.5" Standard kit arrived Thursday. So this morning, I jacked the YJ up and set the front end on stands, off with the front tires..... Carefully following the RE Instructions (such as they are).

1. Front brake line extensions? My calipers have two lines each yet only one line for each side in the RE kit?

2. One pair of shims in the kit. Instructions talk to shims on both axles? So where do they go, front or rear?

3. We'll explore the transfer case kit when we get further along in the process.....

Any help would be greatly appreciated!
 

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I`m not a YJ person, nor do I claim to be one on TV....,but Ive never seen a vehicle with two brake lines per wheel going to one caliper...do you have 2 pistons per caliper? If so, call up the lift kit guys, and tell`m- they`ll need to know.

on all the lifts Ive done, the shims always went in the back (that came with the kits) to help with normal 2wd driveline vibration (hence dropping the transfer case will help solve that as well) that the jeep will see most of--
I have seen very,very,very few shims for front applications....but they do exist-you`ll not know you need them untill your done and have it aligned. Its not something thats regularly done--

with the shims in the rear tilting the axle up, you`ll reduce the rear pinion angle-- the theroy is that both angles need to be the same (transfer case/driveshaft), or as close to the same as you can get to reduce/eliminate vibration-- your going to have it anyway :D --- by shimming the rear, you may end up dropping the transfer case to make the angles closer to the same as what you started with-(BUT, you may also not have to-)....unfortunately, by dropping that transfer case, youve now messed with the front driveshaft angle...its a catch22.

The shims help your jeep live in 2wd mode happily-when your in 4wd playing in the mud, or whatever your choice of fun is, your probably going slow, not on pavement...so the vibration from the weird front angle on the driveshaft wont be noticeable....you will however, have to watch all the u-joints more so then normal-- the more the angle, the quicker the wear.

go turn a wrench and get greasy.
 

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Discussion Starter · #3 ·
Thanks

Looks like I'm stuck at the moment. I've got one leaf in and can't bolt it up until the brake line issue is resolved.

Info on the shims is right on. The more I looked around the web and looked at the kit, realized the transfer case drop would resolve the front issue and use the shims on the rear leaf springs.

Thanks,

Time for a beer. :confused: :confused:
 

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Okay this whole two brake line thing is really odd.. can you post a pic? What year is your jeep? Also, normal stock YJ lines are really LONG.. infact some TJ guys use them with lifts upto 4". Keep us posted.
 

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whiteyj said:
Looks like I'm stuck at the moment. I've got one leaf in and can't bolt it up until the brake line issue is resolved.

Info on the shims is right on. The more I looked around the web and looked at the kit, realized the transfer case drop would resolve the front issue and use the shims on the rear leaf springs.

Thanks,

Time for a beer. :confused: :confused:
your more than half right. but you may discover the "new " problem i mentioned before..but not untill your done.
yes- the transfercase drop + the rear shims does "usually" solve rear vibration and U-joint angle problems. Now- think. Youve lowered the transfer case-therefore youve changed the angle of the front driveshaft to front axle, without adjusting stuff like youve done for the rear...this is where I was talking about it dosent *really* matter, since you wont be in 4wd running 60mph down the highway....although you could...but we know you wouldnt.
Those front U joints will require more inspection, more grease, and will have more wear quicker because of the increase of angle without correction.

and I still wanna see a two line caliper. :confused:

if your stuck- try finding the attaching points for the brake lines at the frame- pull those off for now, then go with the lift. You`ll have to either replace them, or bind them out of the way of the tires radius for now. Think ahead, an check the rear rubber line from the axle up- make sure its long enough as well.
 

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Discussion Starter · #6 ·
More Info

So after a beer and a nap (101F here today) I took another look. What they are are the ABS sensor cables. So each caliper has the brake line and the sensor cable.

Looks like the brake line extension requires taking the end loos off the frame and then rerouting the sensor cable.

So hopefully we'll amke some more progress tomorrow.

Jim

1994 YJ soon to be up on RE 2.5" lift and 31's.
 

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ABS on a 94 yj??? didn't realize they had that option. when i first started reading this post, 2 lines to a caliper suggests ABS, but I thought....NAH....not on a yj. anyway, good luck with everything. post us some pics when you get it all done!!! :)
 
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