drive line angles - Page 5 - JeepForum.com

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post #61 of 92 Old 01-29-2013, 06:52 PM Thread Starter
kjg26
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post #62 of 92 Old 01-29-2013, 06:53 PM
Lrasser
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you need to rear the t-case at the yoke itself. put a socket on the shaft and put the angle finder on the bottom of it.
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post #63 of 92 Old 01-29-2013, 06:58 PM Thread Starter
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i know i'm probably making this harder than it has to be, but i'm not getting consistant measurements. Can someone make an idiots guide for me? Or at least pictures so i can make sure i'm measuring off the right points.

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post #64 of 92 Old 01-29-2013, 07:01 PM Thread Starter
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so measure off this point on the t-case?
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post #65 of 92 Old 01-29-2013, 07:03 PM Thread Starter
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and this for the rear pinion?
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post #66 of 92 Old 01-29-2013, 07:21 PM Thread Starter
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Ok. Remeasured

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post #67 of 92 Old 01-29-2013, 07:24 PM Thread Starter
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Tc yoke

forumrunner_20130129_202230.jpg



forumrunner_20130129_202239.jpg

Rear pinion with OME 3 degree shims

forumrunner_20130129_202247.jpg



forumrunner_20130129_202254.jpg

This is with about a 1 inch drop. I am going to remove the 3 degree shims and check again. Unless yall think that's a bad idea?

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post #68 of 92 Old 01-29-2013, 08:06 PM Thread Starter
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Transfer case with 1 inch drop
forumrunner_20130129_210510.jpg



forumrunner_20130129_210518.jpg

Rear pinion with no shims.

forumrunner_20130129_210527.jpg



forumrunner_20130129_210534.jpg

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post #69 of 92 Old 01-29-2013, 08:58 PM
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looks like there both at 7 deg in the last pictures. are you still getting a vibration?
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post #70 of 92 Old 01-29-2013, 09:06 PM Thread Starter
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Haven't driven yet, waiting on the drop, ill have it tomorrow if all goes well. Ill post back asap.

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post #71 of 92 Old 01-30-2013, 08:20 PM Thread Starter
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Ok drop put in today. Went with a 3/4 drop. Took the rear shims out. Put her back on her feet and took more measurements. Looks to be even angles still.

Rear pinion
forumrunner_20130130_211957.jpg

Transfer case angle
forumrunner_20130130_212006.jpg

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post #72 of 92 Old 01-30-2013, 10:35 PM
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how does it drive? what is the angle of the drive shaft?
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post #73 of 92 Old 01-30-2013, 10:41 PM
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My original setup when I bought it was 4" RC lift, 1 - 1 1/2 inch TC drop, and a mild shim, maybe 3 degrees. It drove perfectly smooth like that.

1994 YJ Wrangler, 4.0, AX15, NP231, 35x12.50x15 BFG KM2s, 4" RC lift, 1" lift Boom Shackles, 1" BL, 4.10 gears, 8.8 LSD in rear and D30 Aussie Locker in front, on-board air conversion, Ramsey RE8000 winch.
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post #74 of 92 Old 01-31-2013, 04:39 PM
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you should do one thing at a time then drive it then do the next thing (rear shim removal) then drive it.
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post #75 of 92 Old 01-31-2013, 04:47 PM
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exactly what kabob said. Wait until you get into having a DC shaft and have to math it out that changing your differential angle also changes the driveshaft angle and will muff up your calculations.

My difference is -5*, but adding 2*'s in shims will put me +1 because of that. Not all shims are equal/exact, some are thicker and raising the axle affects things, contoured vs flat etc. A lot of trial and error.

93' YJ 2.5L, 4.88's, 8.8, E-Locker & LSD
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