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bakelite
03-17-2007, 11:16 AM
Just put some newer springs in my YJ, Rancho 2.5" lift and it has about a 1" shackle lift. I looked on the Rancho site as I have no instructions and the rear drive shaft angle looks a bit wicked (even with the included shims), should I drop the t-case skid plate an inch or so? The instructions mention part #860073 for the drop. I can make the shims, just need to know what length I need. :dontknow: I measured before and after to the bottom of the front bumper and I got 2.5" of lift as compared to before doing it. It has an odd sound in 2hi when starting out in first gear, almost sounds like the tires rub for a second or so, does it every time but it's for sure not tires. Doesn't do it in 4lo at all. All fluids changed, checked gears in diffs, look good. Did it before the lift and after. Any ideas greatly appreciated. Flexes out good now lol, gotta install longer brake lines. [36] Thanks. [cheers]

Nutbar
03-17-2007, 02:39 PM
Yeah Joe you are gonna want about a 1in Tcase drop. What you are probably hearing is the drive shaft/rear end shake as the pinion changes angles under load, should mostly go away with the drop put in the only way to get rid of all of it is to do the SYE to the Tcase and put in a CV driveshaft and adjust the rear end angle for the CV driveshaft.

UU
03-17-2007, 02:42 PM
[iagree] thats what I was going to say

Murd0c
03-17-2007, 03:34 PM
[iagree] thats what I was going to say


weird how Mikey said it first eh [f]



[15][15][15][15][15][15][15][15][15]



Damm I'm going to see tomm


:vroam:

UU
03-17-2007, 04:13 PM
He called ma and asked. I didn't know it was for Joe, I thought it was for him. Now he's coming across sounding all smart and stuff.

F150HULK
03-17-2007, 04:28 PM
Yeah Joe you are gonna want about a 1in Tcase drop. What you are probably hearing is the drive shaft/rear end shake as the pinion changes angles under load, should mostly go away with the drop put in the only way to get rid of all of it is to do the SYE to the Tcase and put in a CV driveshaft and adjust the rear end angle for the CV driveshaft.

[stupid] [stupid] [stupid] [stupid] [stupid] [stupid] [stupid]

Nutbar
03-17-2007, 04:30 PM
He called ma and asked. I didn't know it was for Joe, I thought it was for him. Now he's coming across sounding all smart and stuff.


Sorry bud but you know I am tryin to look smart I am glad your Ma knows so much about trucks.

Murd0c
03-17-2007, 04:48 PM
Sorry bud but you know I am tryin to look smart I am glad your Ma knows so much about trucks.

[15][15][15][15][15][15][15][15][15]

bakelite
03-17-2007, 05:15 PM
Thanks, I will drop the case one inch then. The noise was there before too, just when starting out, no vibration on the road. Don't want to spend too much on this one. But ya gotta do what ya gotta do [15] . Thanks for the help AGAIN [36] [36] [36] [cheers]

UU
03-17-2007, 05:50 PM
My Mom says you're welcome

Tunabomber
03-17-2007, 06:31 PM
remember to loosen the two bolts/nuts that hold the mount for the tranny to the skid plate

i didnt first time [16] what a pain

C-Dog
03-17-2007, 07:35 PM
Hey Joe are the spacers for the t case are they on the top side like on chevys u just take them from the top and bring them down

craig24
03-17-2007, 08:54 PM
remember to loosen the two bolts/nuts that hold the mount for the tranny to the skid plate

i didnt first time [16] what a pain

When I orignaly put mine in I didn't do that and had no problems. Undo 6 bolts, let it drop a bit, slide the "pucks" in and bolt it back up.

bakelite
03-18-2007, 04:19 AM
dunno Colin, never had to do my chevy :dontknow:




thanks Eric...will do doode[cheers]

bakelite
03-18-2007, 04:20 AM
When I orignaly put mine in I didn't do that and had no problems. Undo 6 bolts, let it drop a bit, slide the "pucks" in and bolt it back up.


"pucks" ? I don't have that part of the lift kit, I was gonna use steel spacers, longer bolts, would nylon (uhmw) spacers work? Same shit body lifts are made of??[cheers]

craig24
03-18-2007, 09:57 AM
The kit I got came with a 1" t case drop They're about 1.5" in diameter and made of super hard plastic. I don't see why you couldn't just use steel spacers.

Personaly I removed them, removed the shims under the springs and had my axel rotated to elimante vibrations.

Lynx
03-18-2007, 10:27 AM
Just make them out off a section of hollow square tubing 1x1 or prefereably 1x2. Drill you holes through it and your done.

http://www.go.jeep-xj.info/Spacer%20Diag.jpg

Jason Watkin
03-18-2007, 10:39 AM
well i have every thing you will need sitting in my garage just taking up space...pm me if your interested

bakelite
03-18-2007, 12:06 PM
Thanks Lynx, looks like the same drop I used in my old XJ, good idea. The ones that come with my other kit are coned. :dontknow:

Thanks also Jason, I live in Lac La Hache so picking shit up is a problem. [cheers]

I took some pics of the driveshafts, looks like the front one is extended more and the rear one looks like it's too short almost into the transfer case. I hope driving it like this don't hurt anything as I am kinda broke now lol. Seems okay cept that initial first gear in 2HI noise. Even seems to be shifting better. :dontknow: The joys of being a no nothing newbie I get to learn new shit everyday. :) [36] [cheers]

epic3
03-18-2007, 12:26 PM
The joys of being a no nothing oldtimer newbie I get to forget new shit everyday. :) [36] [cheers]

Dont be so hard on yourself Joe its all part of growing up [cheers]

bakelite
03-18-2007, 12:27 PM
Have I told you what a complete and utter knob you are lately Phil??[15] [15] [15] [36] [cheers]

bakelite
03-19-2007, 07:48 AM
Before I go any further...does this angle look that bad? It's sitting level in my shop.

47057


How about this, the slip part of the driveshaft is pretty much all the way in the slip yoke, other than previous mentioned noise I never noticed any difference driving it??

47058

I know I should get a SYE and I actually have one but it's for my other jeep and didn't really want to buy another one unless I have to. :dontknow:

Nutbar
03-19-2007, 07:55 AM
Rear diff angle is to high. It would be good if you had a CV driveshaft. The rear end should be at the same angle as the Tcase and that rear driveshaft is to far in the Tcase(that is really weird with a lift kit) but will get a little better as you lower the rear end angle.

bakelite
03-19-2007, 08:01 AM
Thanks Mike, there were some shims with the kit, I guess I best take them out. Should I still drop the transfer case or wait and see how it looks?

Nutbar
03-19-2007, 08:13 AM
Hey joe it looks like you have the leaf pack with the short over load leaf in the rear, if I remember right that is the leaf packs for the frt in in the Rancho kits.

as far as the Tcase drop it helps so you don't have as harsh of a driveline angle and clearance for yoke bind at full droop.

bakelite
03-19-2007, 08:18 AM
Well that would figure, I checked all over the net for installation and they don't have much for that lift anymore. Think I should change the springs around? I am going to take the shims out of the rear. I will drop the Transfer case too. Thanks again Mike. [cheers]

bakelite
03-22-2007, 01:16 PM
okay switched the springs around, took out the shims.....ran out of energy. Wow is it ever worse now. Making tons of noise, just drove it out the driveway then back in the shop. Never got to the transfer case drop put in, try that tomorrow. :) Here's a couple pics anyway.

47500

47501

FKN MRK
03-22-2007, 02:03 PM
[cheers] well shit joe....Bummer to hear bud:( . When I put in my lift I used the shims on the rear axle and doubled the t-case drop. I never did try any other way, it worked soo good I had no need to. Maybe you could try shims in, t-case drop with the springs how they are now:dontknow: then possibly try a little bigger t-case drop:dontknow: We should both be doing the sye:o

Tunabomber
03-22-2007, 04:17 PM
ya joe thats a pretty gnawrly angle dude
t case drop should clean it up [cheers]

bakelite
03-23-2007, 12:14 AM
yeah I know SYE probably gonna go that way, but gonna try the drop tomorrow. Probably the shims too again.....all this for a 2.5 inch lift :happy0045:

[cheers]

Apathy
03-23-2007, 07:12 AM
meausre your pinion angle. then measure your output shaft angle. If you are not running a CV this is very important to eliminate vibrations.

if your output shaft angle is 10deg then your pinion should be 10 deg

bakelite
03-23-2007, 04:14 PM
Thanks everyone for your help. [cheers]

Got the Jeep working primo today, just went for a drive, no noise, no vibration, handles better for some reason, even shifts better :dontknow:


So dropped the tcase maybe 1 and 1/4"

47622

Made some shorter shackles

47623

Now my driveshaft looks like this


47624

47625

So I went out and had some fun for a change. :D

47626 47627

47628

[36]

craig24
03-24-2007, 12:49 AM
Good to hear it all worked out for ya. On a side note I thought I was the only one with a painted grill and chrome bezels.....oh well, you'll be the only one soon enough. :D

bakelite
03-24-2007, 05:10 AM
[cheers] ...actually I have a couple chrome grille covers....cheap too [15]

FKN MRK
03-24-2007, 08:13 AM
[36] [36] [36] [36] [36] [36] [36] [36]
_____________________________

Tunabomber
03-24-2007, 11:25 AM
sweet joe glad it worked out fer ya yer drive line looks pretty good[36]

craig24
03-24-2007, 03:55 PM
[cheers] ...actually I have a couple chrome grille covers....cheap too [15]
No thanks, I was hoping you'd buy mine. [15]