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Unread 04-21-2010, 11:15 AM   #31
Jeeper_YJ
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Quote:
Originally Posted by everydayXJ View Post
The tool will be with the tape measures and levels, not sure of the exact name but you'll recognize it. Looks like a wheel with a flat base, hanging inside the degreed wheel is a pointer. The base(s) will be magnetic.

As for the $1k, that's what mine cost including the front end regear. I kept notes on what I bought and how much it cost.... big mistake!

8.8 $200 - $177 for 8.8 then sold D35 for $100 Net cost - $77
Install kit (MORE) $270 - $24 Summit for Perches and $30 Billistics for spring plates, and $10 each u-bolts = $94
Wheel bearings $30 - I didnt need them
Wheel seals $15 - - I didnt need them
gear oil $10
Brake lines $30 - I didnt need them
extended upper shock brackets $80 (very cool add on btw) - Agree. Might do that
welding rod and a new helmet $40

D30 gears and install kit were $240 - I got the LDS and 4:10 axle. Not needed.
axle seals $30
u-joints $50 - I ordered a new DS from Wholesale Reed's Offroad Kids Quads Jeep Driveshafts Rock Crawler Bumpers Vehicle HID kits. Not needed.

So, yeah it's a cool grand to do it right. If you were swapping into a 4cyl you would have avoided the front end expense I suppose.

eta:
Oh yeah, and another $10 for extra length racing studs for the 1" solid spacer I had fabbed up for the right side, gets width back to stock and help better center up that pinion. - Went with new wheels 15x10 to solve this.

Rock on!
I bolded my reply up top. Much cheaper route! PM me if you want to save. I have a few 100 into my axle.

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Unread 04-21-2010, 03:46 PM   #32
bpr
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1994 YJ Wrangler 
 
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DS 21 , Pinion 19 in finished product. Had SYE already installed with lift and D35, measured DS angle. Placed and tacked 8.8 perches in correct location in garage floor using cheap but NEEDED angle finder.

I am SUA so I flipped axle over (where perches would stay put), set the pinion at 19 (off 90) with a little bottle jack under pinion. Remember axle is upside down so perches will stay put (SUA) so pinion will be angled toward floor. Then I set perches at 9/16" out, 0 and tacked them.

Put 8.8 under vehicle, spot on. Took 8.8 back out and welded stuff up. DONE.
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Unread 04-21-2010, 04:24 PM   #33
Jeeper_YJ
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I am just wondering if someone knows the math solution to figure out if mine is right without me going to Lowes Always a way to figure something out with math. Just don't know how.
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Unread 04-21-2010, 06:06 PM   #34
89saharayj
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i bought my 8.8 for 200 bucks and it bolted in the yj with 411s but no lsd=( but still great deal i think.
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Unread 04-21-2010, 06:11 PM   #35
Jeeper_YJ
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Originally Posted by 89saharayj View Post
i bought my 8.8 for 200 bucks and it bolted in the yj with 411s but no lsd=( but still great deal i think.
Agree. I searched for the LSD w/4:11 It took me 4 junk yards, but I found it! Then to hear $177 and someone was already in line to hand me $100 when I took it off was priceless! He then got someone to give him $100 for his old axle. haha! As the world turns.
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Unread 04-21-2010, 06:31 PM   #36
K4KAS
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Originally Posted by Jeeper_YJ View Post
I am just wondering if someone knows the math solution to figure out if mine is right without me going to Lowes Always a way to figure something out with math. Just don't know how.

There is not. You need to find the angle with the tools mentioned. You cannot measure ground clearance from one vehicle to the next. Tire size will change this measurement. GO GET ANGLE ANGLE FINDER!
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Unread 04-21-2010, 06:49 PM   #37
Jeeper_YJ
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Originally Posted by K4KAS View Post
There is not. You need to find the angle with the tools mentioned. You cannot measure ground clearance from one vehicle to the next. Tire size will change this measurement. GO GET ANGLE ANGLE FINDER!
Fair enough. I am sure measurements get you in the ball park. I mean .5" has to be close. We can all agree. But, I will hit lowes in the next few days and post back for ***** and giggles.
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Unread 04-22-2010, 08:50 AM   #38
bpr
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Quote:
Originally Posted by Jeeper_YJ View Post
From TC bottom yoke to the ground is 20.5" and from axle flange to the ground is 14.25"
You could get an idea of your DS angle but not so easy with pinion angle.

measure gnd to center of TC yoke ~ 20.5"
measure gnd to center of pinion yoke ~ 14.25"

measure length of DS ~ 18" (this is your hypotenuse)

Subtract 20.5 - 14.25 = 6.25" (this is your opposite side)

Sin(θ) = opp/hyp

θ = ~ 20.3
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Unread 04-22-2010, 09:35 AM   #39
Jeeper_YJ
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Quote:
Originally Posted by bpr View Post
You could get an idea of your DS angle but not so easy with pinion angle.

measure gnd to center of TC yoke ~ 20.5"
measure gnd to center of pinion yoke ~ 14.25"

measure length of DS ~ 18" (this is your hypotenuse)

Subtract 20.5 - 14.25 = 6.25" (this is your opposite side)

Sin(θ) = opp/hyp

θ = ~ 20.3
You did it? Wow! So, the pinion angle is 20* and others said their's was 19* so its off 1*? KInd of thought it was. That's not bad though? Is that 1* hi or lo?

Good job!
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Unread 04-22-2010, 12:52 PM   #40
Unii
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Originally Posted by Jeeper_YJ View Post
You did it? Wow! So, the pinion angle is 20* and others said their's was 19* so its off 1*? KInd of thought it was. That's not bad though? Is that 1* hi or lo?

Good job!
no driveshaft is 20, pinion is unknown until you get a angle finder...
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Unread 04-22-2010, 12:56 PM   #41
Jeeper_YJ
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Length of DS was given in the formula (18"). Sometimes math has the answer
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Unread 04-22-2010, 01:56 PM   #42
DaveinHouston
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Originally Posted by Jeeper_YJ View Post
Length of DS was given in the formula (18"). Sometimes math has the answer
You have to be a little careful with that although it really doesn't matter. The angle of the driveshaft changes a bit at the double cardan joint. It's not a straight line from the flange on the pinion to the center of the yoke on the transfer case. That's why you want to set the angles with the driveshaft installed.
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