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Old 01-16-2008, 10:45 AM   #1
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Axle upgrade??

so ive been thinking about some new upgrades for the jeep that can be done within the up coming months, and i figured i could start by getting some info and/or parts now....

for the ford 8.8 upgrade:

what years are the ones with disk brakes?
did all the explorers have that axle, or just certain ones? like the 8cyl or 6? rwd and the 4wd/awd one?

and does it matter what gears it has?

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Old 01-16-2008, 11:00 AM   #2
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any explorer 95 and up has the disc brakes..and yes gear ratio matters, the front and rear must have the same ratio..you might have to re-gear one or both..it depends on what tire size you wish to run and if your jeep has a 4 or 6 cyl~fly

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Old 01-16-2008, 04:52 PM   #3
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You'll be fine with any Explorer 8.8. Stay away from the Mustang or Ranger 8.8's because they are all 29 spline instead of 31 spline.

The 8.8 comes with two different gear ratios. Either 3.73 or 4.10.
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Old 01-17-2008, 02:19 PM   #4
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well if i regear both then it wont matter which one i buy, correct?

so look for the cheapest? and is the disc brakes worth it, or are the drums fine?

and what gears should i look into for it? im currently on 33"s, but someday 35+'s will be a must...daily driving mostly...
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Old 01-17-2008, 03:17 PM   #5
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Just curious , is the 8.8 full width or same as the wrangler width?
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Old 01-17-2008, 05:25 PM   #6
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1/4" narrower
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Old 01-17-2008, 07:46 PM   #7
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well if i regear both then it wont matter which one i buy, correct?

so look for the cheapest? and is the disc brakes worth it, or are the drums fine?

and what gears should i look into for it? im currently on 33"s, but someday 35+'s will be a must...daily driving mostly...

i ran both 33's and 35's on mine. i had the 4 banger and 4:88 gears. combo worked well for me.

also...get a 95 or newer 8.8. you'll really appreciate the disk brakes back there.

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Old 01-17-2008, 08:32 PM   #8
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Alright, if your gonna get an 8.8 than deffinatley pull it from an explorer. Dont even look into the ranger/mustang rear ends. Next, dont buy one from a 95' and earlier. The reason being that they didnt start with discs on the rear until 96' and only some 95's had discs. So look for a post 95' 8.8. And lastly, this axle came in mroe than just the 3.73 and 4.10 ratio so you will need to look harder for what you want. But with 33's right now I highly suggest you get a 4.10 ratio because you will deff. appreciate the lower gearing, especially if you have a 4 banger. This will warrant a gear swap on the front axle to 4.10's since I highly doubt you have that ratio now. Its possible but not likely. You can find the ratio of your axle by checking the ratio tag on the differential. It should be on the left side held on by the diff cover bolts. Understand that the 8.8 is not set up for coils so you'll need to have new coil buckets welded on in the correct spot on the axle. Its also either 1/4 or 1/2" narrower. This shouldnt be noticeable once the axle is in though. Lastly, this swap is very popular because the bolt patternis the same (5x4.5) and it uses much stronger 31 spline axles. Not to mention the discs are a major stoping improvment over drums.
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Old 01-17-2008, 08:57 PM   #9
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Understand that the 8.8 is not set up for coils so you'll need to have new coil buckets welded on in the correct spot on the axle.
coils!?????

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Old 01-17-2008, 10:47 PM   #10
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well i have the 4.2 L in there now, and i might be buying a girls totaled 95 with the 4.0L in there to swap out, so i will have a six in there regardless....im just not sure what gears i should run?

so DEF get the 8.8 out of an explorer AND with the disk brakes right!?
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Old 01-18-2008, 12:09 AM   #11
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with a 6cyl and 33's, you will want 4:10's..your four banger came with 4:10's..the sixs generaly 3:73's..you don't need coil buckets..we are talkin yj here right? your yj has leafs, altho, you will have to cut off the old spring perchs and weld on new one's..also, you will need to use an adapter for your u-joint..and the discs are so much better than a drum~
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Old 01-18-2008, 07:35 AM   #12
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what kind of adapter, and where can it be located?
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Old 01-19-2008, 01:11 AM   #13
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what kind of adapter, and where can it be located?
i believe he's talking about the adaptor you'll need to link your rear driveshaft to the axle. ford is a flange type rear....hence need the adaptor to couple to yoke of the driveshaft.

i forget where i got mine...
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Old 01-19-2008, 10:13 AM   #14
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i got mine from M.O.R.E for ~20 bucks IIRC
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Old 01-21-2008, 04:26 PM   #15
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In my opinion I think the flange yoke's are stronger than a ujoint style yoke with straps. You can also purchase an adapter to convert your driveshaft to have a flange on it as well.
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Old 01-21-2008, 04:29 PM   #16
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In my opinion I think the flange yoke's are stronger than a ujoint style yoke with straps. You can also purchase an adapter to convert your driveshaft to have a flange on it as well.
x2.
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Old 01-23-2008, 11:06 AM   #17
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In my opinion I think the flange yoke's are stronger than a ujoint style yoke with straps. You can also purchase an adapter to convert your driveshaft to have a flange on it as well.
so if i plan on doing this and an SYE, is this gonna effect the driveshaft i need? i am a complete newb at this im gonna apologize for my next couple a questions also in advance.....

and what do you recommend for driveshafts? there is a shop the next town over from me where the guy will make custom size shafts...all the old school muscle car guys i talked to keep telling me just go to him instead of buying one....
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Old 01-23-2008, 01:12 PM   #18
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if you do the sye, you will need a CV shaft. they cost ~400-500 to have them made. im a tightwad, so i bought the front shaft off an XJ for 40 bucks, then had it shorted for ~50 bucks.

do the SYE first, then when you put your 8.8 in, you can weld the perches on so it points upward at the correct angle.
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Old 01-23-2008, 01:33 PM   #19
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if the 8.8 is narrower by a 1/4" then what front axle will match it higher than a D35?
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Old 01-23-2008, 01:38 PM   #20
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if you do the sye, you will need a CV shaft. they cost ~400-500 to have them made. im a tightwad, so i bought the front shaft off an XJ for 40 bucks, then had it shorted for ~50 bucks.
Not sure where you looked for a CV shaft but i got the Advanced adapters SYE with a CV shaft with XB slip for $525 they start at $495
Not sure how much just for the shaft
http://www.4xshaft.com/index.html
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Old 01-23-2008, 02:32 PM   #21
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Quote:
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so if i plan on doing this and an SYE, is this gonna effect the driveshaft i need? i am a complete newb at this im gonna apologize for my next couple a questions also in advance.....

and what do you recommend for driveshafts? there is a shop the next town over from me where the guy will make custom size shafts...all the old school muscle car guys i talked to keep telling me just go to him instead of buying one....
If you aren't going to be using a shop like Tom Woods, Six States, Precision etc.... then I would put your axle in and your SYE and then measure for your driveshaft. Having a new shaft built from scratch you can have it built with a flange yoke on it. Especially since you are dealing with a Ford 8.8, the muscle car guy will know what you are talking about. Just make sure to tell him that you do need a CV built on the TCase end.

Quote:
Originally Posted by whitebuffalo View Post
if you do the sye, you will need a CV shaft. they cost ~400-500 to have them made. im a tightwad, so i bought the front shaft off an XJ for 40 bucks, then had it shorted for ~50 bucks.

do the SYE first, then when you put your 8.8 in, you can weld the perches on so it points upward at the correct angle.
On it's own a regular ol CV shaft that is as short as a TJ/YJ should only run you about 300 bucks.

Quote:
Originally Posted by Felsengleiskette View Post
if the 8.8 is narrower by a 1/4" then what front axle will match it higher than a D35?
Being a half in narrower total won't affect anything at all with your front axle. You can't do anything with the explorer as they are IFS front ends.
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Old 01-23-2008, 04:20 PM   #22
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Not sure where you looked for a CV shaft but i got the Advanced adapters SYE with a CV shaft with XB slip for $525 they start at $495
Not sure how much just for the shaft
http://www.4xshaft.com/index.html
great place to buy from and awesome tech support!


Quote:
Originally Posted by 1BLKJP View Post
On it's own a regular ol CV shaft that is as short as a TJ/YJ should only run you about 300 bucks.

my local shop quoted me 400 or 500 but they tend to overkill everything for my needs.

alrright so fine, i only saved $200
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Old 01-23-2008, 05:59 PM   #23
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the buff is correct..first put in your sye, then you can angle your diff flange towards it (a few degrees low) the flange is no big deal, easy to get, you will need a new drive shaft..the tj front is a good trick, i couldn't source one so i had one made, at almost 400$..the 1/4" differance in wheel track, is something you will never notice (it just means the ford 8.8, is actually about 1/2" narrower, than the jeeps axel, the bolt pattern is the same-so, don't give it a worry~fly
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Old 01-23-2008, 11:02 PM   #24
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im not worried about the difference in size, its the front isnt STRONG enough at a D30. i want something the size of a 8.8 but stronger than a D35 for the front. full axles are to wide...and they will have drum rears.
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Old 01-24-2008, 05:08 AM   #25
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Look for a late model Grand Wagoneer. I have a '91 D44 front w/ discs.
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Old 01-24-2008, 03:46 PM   #26
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so just say i get the SYE in first and some what a couple months down the road i get the 8.8 in, is there a way to modify the driveshaft to accommodate the flange of the 8.8 style?

and whats a good sye kit? and whats a fair price? i see them on ebay all the time, but dont know how good they are....

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