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Old 04-06-2010, 10:16 AM   #1
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8.8 conversion questions

I'm picking up an 8.8 rear assembly (1999 Mercury Mountaineer, V8, locked, disks) this weekend. I'm looking at installing Superior's Super 88 axle kit. Since I don't have access to a welder anymore, I'm going to have to pay someone to weld up my suspension mounts. My question is this.......should I go ahead and install the Super 88 axle kit prior to having my housing welded? Or should I wait until the housing is fully prepped before I install the new axles? I'd like to do the axle install before I take the assembly in to have it welded, but I don't want to screw anything up. Does the housing need to be gutted to have the suspension mounts welded? I wouldn't think so, but I figured I'd ask.

Superior Axle says that this axle kit will laugh at 37's. We'll see about that. A long arm lift with extended wheelbase and 37's is in the near future. (By near, I mean within the next couple of years.)

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Old 04-06-2010, 12:54 PM   #2
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shouldnt be a problem at all... i didnt upgrade to super 88 but i left everything in it when we weldedd on the perches and shock mounts and a trackbar... not a problem.

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Old 04-06-2010, 03:19 PM   #3
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The only thing I'd worry about is the axle seals. If your welder is worth a damn he will allow the axle to cool instead of building up pressure inside the housing. But when it is all said and done there really isn't much welding going on. So I wouldn't really worry about it.

My 8.8 lived up to 37s for quite a long time with a spool.
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Old 04-06-2010, 04:04 PM   #4
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I was hoping you'd chime in here Andy. Did you weld the axle tubes to the housing? I hear that's a recommended thing with the 8.8 since the welder will be fired up anyways.

Also, Andy......if I can't find anyone here locally to fab up my suspension mounts, do you know anyone down your way that has a good reputation? I've got a good guy up here, but he's backed up a bit with work and I don't know how soon he'd be able to get to it.
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Old 04-06-2010, 06:10 PM   #5
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I did weld the tubes to the housing. I didn't weld on TJ brackets. I stretched my 8.8 with leafs. So I installed a traction bar and welded all of it to the chunk so it wouldn't go anywhere.

I don't know anyone down here with a good reputation. But I can do it.
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Old 04-06-2010, 06:16 PM   #6
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It'll be sometime this summer, but if you can do it and would like to make some extra cash, I'd be happy to let you have the fun of melting metal with fire.

This is the install kit I'm looking at getting for it. Let me know if you think there's a better/cheaper kit out there......

kNOw Where 2Jeep Complete Ford 8.8 Install Kit For Wrangler TJ
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Old 04-06-2010, 06:23 PM   #7
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That seems like an alright deal.
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Old 04-06-2010, 08:30 PM   #8
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Old 04-09-2010, 01:43 AM   #9
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hey clifford, I actually just contacted that company about both of those axles, really good deals on both. Lookin into the 9" for myself but I have the Y-link rear and they said they would build a custom truss for me.
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Old 04-10-2010, 04:01 PM   #10
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Picked my 8.8 up yesterday in Wichita. I talked with Scott at Off Road Motorsports in Derby about welding up my suspension mounts for me. Told me about a guy who does a lot of that type of work for them, then showed me some of the guy's work. Looks like the guy knows what he's doing. Hopefully I'll have this rearend under my rig sometime prior to midsummer.

I'm going to run the stock gears for now. I made sure to get 3.73's so they would match my front. I don't want to regear until I figure out what I want to do with my front end. I don't want to keep the D30 up there if I'm planning on running 37's. I'm thinking about going with a Currie D44 or a SOLID D44 for the front. That's going to put a dent into the ol' budget, so it's not going to be an overnight process.

I'm going to like having 4-wheel disk brakes, I think.
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Old 04-13-2010, 12:40 AM   #11
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sounds like fun for sure
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Old 04-13-2010, 10:16 AM   #12
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I spoke with a gentleman yesterday about welding my suspension mounts on to the new housing. He says he's done a number of 8.8 conversions into TJs. However, he said I'm probably going to need adjustable uppers and possibly adjustable lowers. Has anyone heard of that? He says that will make it easier to install just in case he doesn't get the new mounts welded at the exact proper angle. Should I be concerned? I REALLY don't want to buy adjustable short arms to install this rearend if I'm going to be upgrading to a long arm lift within the next year or two.

I would think when welding the new mounts on to the housing, you'd measure, measure, re-measure, tack, measure, then finish weld them. They'd be right regardless of whether you're using your stock control arms or adjustable control arms. Am I wrong?
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Old 04-13-2010, 10:21 AM   #13
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Old 04-13-2010, 12:18 PM   #14
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Exactly my thoughts. He also said something about possibly having to shorten my rear driveshaft. Now that's not something I want to do. It's short enough the way it is.
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Old 04-13-2010, 12:24 PM   #15
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Who was it? There is a good chance the DS will need to be shortened. Local place charges $35 to shorten and ~$38 balance.
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Old 04-13-2010, 12:34 PM   #16
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It was Allen.
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Old 04-13-2010, 12:53 PM   #17
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I'm surprised. I've seen quite a few of the rigs he has built and they are quality stuff. I guess the only way to be sure everything is correct is either jig it or mock it up under the vehicle. I still think you should be able to get pretty close with an angle finder and a tape measure.

Another item to think about is you want the brackets to be set up for whatever suspension you plan to run. When you install a SYE you will need to point your drive shaft up. It would be nice to have all the brackets welded in place with the pinion rotated up. I say do it all at once. Install the long arms and the axle and only do it once. If you install the brackets for your short arms and later rotate the axle up it can put your shocks in a bind and the coil springs won't be sitting straight.
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Old 04-13-2010, 07:06 PM   #18
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I think that's what I've decided to do. I'll just take my time with this axle build. I bought new rotors/pads today. The rotors that were on it needed turned, and new ones only cost me $37 each. Score! This way when the diff goes under the Jeep, it'll have the 5.13 gears, spool or locker, the Superior Super 88 chromoly axle C-clip eliminator kit, and suspension brackets set up for my long arms. Not to mention my new brakes and my SOLID diff cover.
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Old 04-15-2010, 08:59 AM   #19
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Ive been searching for an old thread I know i read on here somewhere that listed all the needed parts for the conversion. does anyone by chance know where I can find said thread?
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Old 04-15-2010, 11:04 AM   #20
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Quote:
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Ive been searching for an old thread I know i read on here somewhere that listed all the needed parts for the conversion. does anyone by chance know where I can find said thread?
is this the thread that you are talking about?
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Old 04-15-2010, 12:28 PM   #21
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Ive been searching for an old thread I know i read on here somewhere that listed all the needed parts for the conversion. does anyone by chance know where I can find said thread?
Pyro, here's the link to the site where I'm ordering all of my parts from......

kNOw Where 2Jeep Complete Ford 8.8 Install Kit For Wrangler TJ
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Old 04-28-2010, 10:22 PM   #22
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Here are some pics of my progress. I took a pic on my phone of the rearend the day I got it and sent it via pic message to my e-mail, but can't seem to download it onto my computer. Perplexed. However, here are some pics of the rearend.

All Ford suspension mounts cut away and ground smooth. Most surface rust is also ground away with a wire wheel and sanding disk.


Primed with self etching primer.....I'm putting the entire rearend in primer to keep rust from setting in. It'll have to be ground down to bare metal again where the new TJ suspension mounts get welded onto the housing.


Center section and ends in paint. Couple of photos.....



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Old 04-28-2010, 10:27 PM   #23
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Uno mas.......Went ahead and painted the tubes with a light coat of paint. Once again, it'll have to be ground away at the housing so we can weld the tubes to the center section as well as where the new mounts are to be welded. I'll do a light sanding on the e-brake shoes before installing my new rotors sometime tomorrow. I'll probably tackle the caliper clean-up/repaint sometime next week.
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Old 04-28-2010, 10:29 PM   #24
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Aint she purty?
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Old 04-28-2010, 11:38 PM   #25
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She is. Keep us posted.
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Old 04-29-2010, 12:02 AM   #26
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u know, that axle could be a perfect excuse to get a small sand blaster........
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Old 04-29-2010, 06:59 AM   #27
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Tell me about it. Grinding down all the surface rust with a sanding disk and a wire wheel was a pain in the bum.
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Old 04-29-2010, 12:42 PM   #28
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Ok here's another one. My brand new rotors.....
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Old 04-29-2010, 12:48 PM   #29
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Be sure you keep a good coat of WD40 or similar lube on the rotors to keep them from rusting. Nothing sucks worse than buying rotors twice for the same project.


Ask me how I know.
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Old 04-29-2010, 02:10 PM   #30
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Be sure you keep a good coat of WD40 or similar lube on the rotors to keep them from rusting. Nothing sucks worse than buying rotors twice for the same project.


Ask me how I know.
How do you know?

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