It is currently Mon Dec 10, 2018 5:29 am




Post new topic Reply to topic  [ 8 posts ] 
 8.8 in an XJ 
Author Message
Lifetime Member
User avatar

Joined: Tue Jan 29, 2008 2:29 pm
Posts: 1808
Location: Clarksburg, WV
Post 8.8 in an XJ
Here are some pictures of the 8.8 in my Xj.   I know there are several people here who also have the 8.8 so feel free to chime in with other info.   I know there have been some really nice write ups on the 8.8 builds on here.

under the Jeep
Image

You can see a LITTLE bit of a difference in the width (I think its .68"/side)
Image

Welded up tubes, the 8.8 has a weak linkin the tubes so welding around them will help strengthen them and help keep them from spinning under torque.
Image

Here are a couple pictures of the ZJ rear Ebrake cables
Image
Image

On my Jeep the molded pieces holding the Ebrake cables started pulling together under the pressure so here is a shot of the small tube welded to keep them from pulling together.
Image





Ford 8.8 assembly specs:
Cover bolt 28-38 ft.lbs.
Pinion bearing preload 16-29 in.lbs.
Pinion bearing preload 8-14 in.lbs (used)
Ring gear backlash .008-.015
Ring gear bolt to case 70-85 ft.lbs
Side bearing caps 70-85 ft.lbs.


Explorer 8.8 Measurements:
Weight (complete assembly w/ brakes etc.): 174 lb.
O.D. of tubes: 3.250".
Tube thickness: .250" (some are .188”!)
Ring gear diameter: 8.800".
Ring gear bolts: 7/16" dia. (qty. 10).
Pinion diameter/splines: 1.625 / 30.
Axle shaft/splines: 1.320 / 31.
Rotor thickness (where it mounts to axle is .250").
Overall width 59.625" (the F8.8 is .950" narrower then a TJ Dana 35).
(The F-150 8.8 is drum brake and width WMS to WMS is 65.5”.)
Hole diameter for ABS sensor in top of housing: .811".
Bolt size (U-joint flange to yoke) is: 12 x 1.75 x 30 mm
Centerline of housing to C/L of pinion difference is 3.875" toward the P/S.
Pinion offset: P/S to C/L of Pinion, 27-3/4" (no rotor on axle), D/S to C/L of Pinion, 31-5/8" (no rotor on axle). (this measurement is 2.5" more offset to the P/S then a TJ Dana 35).

Specs:
Code Capacity Ratio
43 Open 3200 3.08
41 Open 3200 3.27
42 Open 4.10
46 Open 3.73
45 Open 3200 3.55
D4 Limited Slip 3200 3.73
D2 Limited Slip 4.10
L73 Limited Slip 3.73
L - Limited Slip Differential
C - Conventional Differential

How many splines are the axle shafts?
drivers side is 31 spline for 97 & up Mountaineer, 95 & up Explorer, 30-1/2 inch length - 5 X 4.5 inch lug pattern.

passenger side is 31 spline for 97 & up Mountaineer, 95 & up Explorer, 27-5/8 inch length - 5 X 4.5 inch lug pattern

Can I get 35 spline shafts? Yes, with a little searching I found 28 and 33 splines too. Remeber 8.8 axles are used on many different Ford rigs. Mustangs, Rangers, F150s, Aerostar etc... different axle lengths than the Explorer so if you are looking for aftermarket products make sure you are not looking at something for a Mustang that might not fit an Explorer. For the 35 spline stuff check with Mark Williams site. i dont have a link yet but i will soon.

Do I need a slip yoke eliminator? In my opinion, yes

Can I use my drive shaft that I bought for my SYE/Dana 35 set-up? Yes

Is the 8.8 narrower than a Dana 35? Yes but not enough to make a difference when running most aftermarket wheels.1.5" shorter or so. It doesn't matter unless you try running stock rims w/12.5 or wider tires.

Are the 8.8 shafts stronger than Dana 44 shafts? Yes, also the bearings, pinion and ring gear are also much larger.
Axle shaft Strength and output torque rating by Warn and 4 Wheeler

The axle shaft strength tested by Warn Ind:
F8.8= 6,500 (lb. ft.)
D44= 4,600-5,000 (lb. ft.)
D35C= 4,000-4,300 (lb. ft.)

COT: Continuous output torque rating
MOT: Maximum output torque rating

(Numbers from January edition of Fourwheeler, page 60.)
Dana 35 rear axle COT: 870 MOT: 3480
Dana 44 rear axle COT: 1100 MOT: 4460
Ford 8.8 28spline COT: 1250 MOT: 4600
Ford 8.8 31spline COT: 1360 MOT: 5100
Dana60 semifloat COT: 1500 MOT: 5500]

Will I need that brake proportioning valve from a Rubicon? Probably not

Does the 8.8 offer more ground clearance over the Dana 35 and 44? Not under the differential but the bigger axle tubes lift the rig about 5/8 ".

Is there welding involved? Yes, but the new brackets you put on are much stronger than stock Dana’s. Not a good idea to re use your old Dana 35 brackets

Where do I get brackets?
4x4 Group Buy has Rubicon Express for $225+shipping.
Bob Supplee has Tera for $220 shipped.
DC4WD has Tera for $217 shipped. thanks jamie 9/21/05

Carolina Rock Shop (call or email for price quote)
TeraFlex TMI-ABK-TR $250.99
M.O.R.E. Dana 35 brackets (sku:MORE98700)
Rubicon Express RE9969 TJ Axle Bracket Kit Rear
Mad4wd.com (sku:Mad-BKTK-TJ1)
Link to axle bracket placement on Stu Olson's site
The list above should get you headed in the right direction as far as brackets go. Look around and compare prices as the brackets can be found for $200.00 or less shipped sometimes. Keep this in mind when shopping for any item for your build-up,if you do, you will save a bundle.

Can I reuse my Dana 35 brackets? Yes, but it is not recomended. The stock Dana 35 brackets are sort of flimsy compared to the beefy aftermarket versions. Some of the brackets available are in fact for Dana 35 axles to replace the weak ones that come factory. Reusing the D-35 brackets is time consuming even if you have the right tools, not a good idea IMO

Should I weld the axle tubes to the cast housing? I would if it had been salvaged from a wrecked rig. If it is new on a crate (in my opinion) don’t bother.

What is the bolt pattern? 5 on 4.5” just like stock TJ/YJ wheels.

Will my Jeep lug nuts fit the 8.8? In most cases, yes.

What do I do with the speed sensor? leave it in place.

SUPER 8.8 Instal Link (STU's Site)

Here is the Jeep Unlimited Link for the 8.8 INFO - This is a good link for those looking to learn more about doing an 8.8 swap.

And the last piece of info I think you should need is a contact to pick up an 8.8.   PM JunkYardDog here on JeepinWV.com and he'll hook you up.



Jason

_________________
Jeepless...


Wed Jan 30, 2008 12:45 am
Profile

Trying to explain how to weld is sort of like trying to explain how to develop balance on a bicycle.

Bullet Proof
User avatar

Joined: Tue Jan 29, 2008 1:20 pm
Posts: 1854
Location: Belle W.V
Post Re: 8.8 in an XJ
Looks nice, I cut the 8.8 spring perches off and re-used them. There the same size as the ones off of my 8.25 and already have the arch for the 8.8 axle tube.

_________________
96 XJ long arms, lockers and 35's--RIP
93 S-10 LSX powered (under construction)
98 2500 tow rig
The white thing on the left


Wed Jan 30, 2008 1:04 am
Profile

I'm still alive

Post Whore
User avatar

Joined: Tue Jan 29, 2008 6:49 am
Posts: 6036
Location: South Charleston
Vehicle: 2006 Chevy Silverado
Post Re: 8.8 in an XJ
Here is a build write-up from NAXJA

http://www.naxja.org/forum/showthread.php?t=946285

_________________
Tom Upton


Wed Apr 23, 2008 2:51 am
Profile

At Work

Bullet Proof
User avatar

Joined: Thu Feb 14, 2008 6:52 pm
Posts: 1165
Location: Fairmont, WV
Post Re: 8.8 in an XJ
Judging from the second photo, I would guess you like Corona.

Good info, thanks for sharing.

_________________
1996 Jeep XJ 4.0L 3" Rough Country Lift + 1/2 inch spacer lift, 31x10.5 Mud Country Tires, Soft 8 wheels, JKS quick disconnects, ARB Bull Bar bumper, Uniden 510xl CB, Aussie Locker(front), WARN M8000 winch.
http://www.eludingessence.com


Wed Apr 23, 2008 8:36 am
Profile

"Terrific, a six demon bag! Sensational!"

WVJC Graphics Designer
User avatar

Joined: Tue Jan 29, 2008 7:08 am
Posts: 3402
Location: I get around ...
Vehicle: Jeepless
Post Re: 8.8 in an XJ
I'd love to score one of those for cheap. It's on my never-ending wish list of things that cost too much :(

_________________
Cannibal's Cave: http://cannibalwv.tumblr.com/ | The makings of a turd: viewtopic.php?f=51&t=24679


Wed Apr 23, 2008 8:51 am
Profile
Lifetime Member
User avatar

Joined: Tue Jan 29, 2008 2:29 pm
Posts: 1808
Location: Clarksburg, WV
Post Re: 8.8 in an XJ
TrueBlueXJ wrote:
I'd love to score one of those for cheap. It's on my never-ending wish list of things that cost too much :(


Whats cheap?   I have seen some 8.8 in great shape going for great prices here on the board.

_________________
Jeepless...


Wed Apr 23, 2008 9:07 pm
Profile

At Work

Bullet Proof
User avatar

Joined: Thu Feb 14, 2008 6:52 pm
Posts: 1165
Location: Fairmont, WV
Post Re: 8.8 in an XJ
TrueBlueXJ wrote:
I'd love to score one of those for cheap. It's on my never-ending wish list of things that cost too much :(


I am not sure if he wants to sell them or not but Zane42 has an 8.8 and D44 laying around at his house.  I am sure the right price he will sell them to you.

_________________
1996 Jeep XJ 4.0L 3" Rough Country Lift + 1/2 inch spacer lift, 31x10.5 Mud Country Tires, Soft 8 wheels, JKS quick disconnects, ARB Bull Bar bumper, Uniden 510xl CB, Aussie Locker(front), WARN M8000 winch.
http://www.eludingessence.com


Wed Apr 23, 2008 9:39 pm
Profile

"Terrific, a six demon bag! Sensational!"

WVJC Graphics Designer
User avatar

Joined: Tue Jan 29, 2008 7:08 am
Posts: 3402
Location: I get around ...
Vehicle: Jeepless
Post Re: 8.8 in an XJ
But then comes the new R&P, and paying someone to install them. I've still gotta fix the front end and address my alignment issues. One thing at a time  :angry3:

_________________
Cannibal's Cave: http://cannibalwv.tumblr.com/ | The makings of a turd: viewtopic.php?f=51&t=24679


Wed Apr 23, 2008 11:11 pm
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
Powered by phpBB © phpBB Group.
Designed by Vjacheslav Trushkin for Free Forums/DivisionCore.
Portal by phpBB3 Portal © phpBB Türkiye