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Old 03-01-2011, 06:42 PM   #1
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8.8 Bracket & Brake Install Question

With my d35 outta commission, I need to get my 8.8 up and running as fast as possible. Everything else seems pretty good, but before I start ordering parts I want to make sure I'm looking at everything right.

kNOw Where 2Jeep Complete Ford 8.8 Install Kit For Wrangler TJ/LJ

This is the kit I'm planning on purchasing minus the differential cover. I know I'll need a replacement, but I'm going to have to wait for right now because this cost was entirely unexpected.

I have the axle already w/ 4.10 gears, so I shouldn't need a regear. But here's my questions, and I hope you guys can answer them for me!

Questions
  1. How do I find the proper welding location? I saw someone just used another sites angles and said they were perfect. But others seem to tack weld, mount the axle in, then redo it. I honestly have been lost with trying to figure out what each angle measurement means and where it should be centered. I'd rather not have to drop the d35 before I weld the 8.8 axle in as I still need to move the Jeep around.
  2. How do I run the brake cables and is this everything I'll need in terms of the brake lines? I have the hard cables that were run along the axle, but I don't known what condition they're in.
  3. Is there anything extra that you think I'll need? I'm on 31s with stock suspension (no lift) and no SYE. Once this axle is on I'll quickly be going into a 4" lift w/ SYE. It'll just be a month or two until I have the extra money to invest.
  4. Any other tips that you would recommend?

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Old 03-02-2011, 04:02 AM   #2
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bump!

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Old 03-02-2011, 08:28 AM   #3
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We used the measurements from stu-offroad...they worked out perfect. We tacked eveything in place and then put it under the jeep just to make sure. The only thing that was different for us was the pinion angle. As far as brake lines, we bought new hard lines and hooked them up to all of the factory parts I believe. One of my lines was way too long (that is all they had that would fit the fitting we had) but I am dropping my axle the weekend after next for gears, so we will shorten it with a double flaring tool. Also, if you pull the calipers, save yourself the headache and make sure you put them back on the CORRECT side...if on the wrong side they are a b***h to bleed and will have you puzzled as to why your brake pedal is so soft and your brakes suck...ask me how I know. Also keep in mind that you MAY have to get your drive shaft shortened until you go SYE. Other than that, I think thats pretty much the only things we ran into. You would be better off changing the gear oil after welding everything on if there is oil in it...the welding burned the fluid right up, which smells amazing by the way. Enjoy
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Old 03-04-2011, 05:54 AM   #4
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So looking at Stu's diagram and then taking the information from East Coast Supply, do you think I could get away with their measurements (East Coast says pinion angle at 6 degrees). How else could they sell bolt-ins without simply estimating the degrees?

Complete Ford 8.8" Rear Axle Assembly Jeep TJ Ready to Bolt In Axle Swap

I don't have a lift nor do I have a CV/SYE yet. I'm getting adjustable uppers from Rustys immediately with the swap, but will hold off on the SYE until I lift or unless I absolutely need it.

I just want to make sure I'm looking at everything correctly, beucase I'm not quite as able to take both my Jeep and the axle to the shop to have it welded. Plus, he'll charge me an arm and first born to take the axle off my Jeep, readjust, and take it off again.
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Old 03-04-2011, 06:43 AM   #5
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thump bump!!!
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Old 03-04-2011, 07:22 AM   #6
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I just did mine a few months ago. Get the SYE and install it first. That's all I gotta say about that. You will spend money making the old stuff work and it aint worth it.

I have a 4" RC lift on my Jeep and in my application 15 degrees of pinion angle happens to be perfect. You may find that with no lift yours is less...like maybe 7 degrees?

Since you KNOW you are going to lift your jeep, Why NOT position the bracketry to accomodate a lift? My spring perches are almost dead level when the pinion is set to 15 degrees. As a result, I do not have an interference issue with the perch and the rear shock.

I think (I will measure again if you really need the info) that my upper brackets are 5 degrees more than my perches which I think are 10 degrees from level. Am I making sense?

With the pinion at 0 degrees sitting on the ground chocked up level - - - My spring perch is rolled aft ten degrees (plus 10) and the brackets are rolled aft 15 degrees. and now that I am thinking about it I may be remembering incorrectly.... at 15 degrees pinion angle - - my perches are right at level...so maybe its 15 and 20? I will measure if it will help you decide.... putting em in the right place is crucial enough to warrant tacking, installing checking and removing.... Youwont have to do that if you use my measurements... and I think mine are same as STU's.........
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Old 03-04-2011, 11:18 AM   #7
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If u could give me your measurements I definutely would appreciate that.

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