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Discussion Starter · #1 ·
Post any links or information here that should be included regarding 8.8 axle swaps.

Don't post questions regarding specific projects. This is meant to be for spreading information only.

Thanks
 

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Not sure if it's worth anything in current form, but there's some good ideas brewing in my thread abour the parking brake system on an 8.8... CLICK HERE.

There's also a few good links floating around in that thread for other 8.8 brake solutions and kits.
 

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These are the codes you will need when out shopping for your 8.8

Axle tag codes:

3L73 = 3.73 LS

4 10 = 4.10 open

4L10 = 4.10 LS

and so on

Door codes:

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

Here's all the specs, measurements, and misc crap about the 8.8 you'll ever want to know.

Ford 8.8 specs:

Weight (complete assembly w/ brakes etc.): 174 lb.

Axle shaft strength: 6,500 (lb. ft.)

Drivers side Ford brake hose #:F5TZ-2282-A

Passenger side brake hose #: XL2Z-2282-AA

Bolt size (U-joint flange to yoke) is: 12 x 1.75 x 30 mm

Driveshaft Flange: Spicer Part Number 2-2-1379

Measurements:

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).

Hole diameter for ABS sensor in top of housing: .811".

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).

all taken from
http://members.cox.net/quanno/ford88.html (Now a dead link, but Quan used to be a person here back in the day)

there are comparison pics to the D35 there as well

also www.stu-offroad.com has TONS of info... not just on 8.8 axles
 

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I just checked my YJ foot operated park lever vs my TJ lever. The YJ lever is 9" from pad to pivot with a 2" pivot to cable which equals 4.5 to 1 ratio. The TJ has a 13" handle to pivot point with a 1" pivot to cable or 13 to 1 ratio. This is almost a 3 to 1 advantage. The YJ requires you push with your foot, the TJ is pull with your hand which is a much easier procedure at least for me.
You could attach a bellcrank where the front cable end is located under the body that has at least a 2.5 to 1 advantage (5" from pivot being pulled by the front cable and 2" from the pivot attached to the rear cable(s)). The foot pedal will have to move quite far and it would be advantages to have an early GM rachet still pedal assembly. You could install a TJ style handle and be done with it.
 

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Discussion Starter · #14 ·
CYOOS sent me this in a PM

cyoos said:
That earlier ebrake solution might be the same guy that posted in Jeeps Unlimited on page one of the following post under the name Avanteone:

http://www.jeepsunlimited.com/forums/showthread.php?228495-E-Brake-Cables-for-a-Ford-8-8

"OK, before I get started, I know I should have taken pictures. You guys did some pretty good work and don't take this wrong, but I did mine WAY WAY simpler than the prior posts. All I did is disassemble my D35 brakes, take the little ebrake lever that the cables originally attach to, chop off the last inch or so, grind it flat and weld it on the ends of the little ebrake levers that stick out of the 8.8. Then I simply ran my original D35 XJ cables through the hole on the 8.8, and hooked them onto the ebrake levers like they were originally in the D35. This works perfect, have done it in a YJ and in my XJ on 8.8 installs. Took me about 15 minutes total for the install and very easy assuming you already have the welder there. John. "
cyoos said:
The last post in the following one page thread by davsyjdd (with pic) is the best solution I've seen so far. It utilizes the factory YJ ebrake cables, and welding the YJ cable retention end of the D35's ebrake lever to the 8.8's ebrake lever.

http://www.jeepforum.com/forum/f12/8-8-e-brake-cables-1871410/

My project 8.8 is setting in the back room awaiting rebuild. When I opened it up for inspection last summer I found pieces of a previous gear set, one pinion tooth busted, the LSD clutch steels on the ring side were spun and jammed between the spiders and the diff housing, and a gentle twist in the ring side axle splines. So it's back to plan A and a complete rebuild with a TrueTrac, 4.10's, and possibly c-clip eliminator kit hopefully before the end of summer, so I have plenty of time to research. :2thumbsup:

Cheers

Chris Yoos
cyoos said:
In my travels on the net I found these parking brake cables for YJ's with a disc brake conversion.

The left cable is 32.75 inches.

The right cable is available in 69.75 or 70.5 inch versions for 1991-1995, or a 64.75 inch version for 1987-1990 YJ's.

Total cost less shipping for a 1991-1995 YJ:

$36.46 with the short right cable
$39.44 with the long right cable or the 87-90 cable

Considering the inconsistency people seem to have with the ECGS cables, and the headaches of figuring out how to either adapt their YJ cables to the Ford parking brake lever, or the Ford cables to their YJ's equalizer, this seems like it might be a worthy investment.

The cables are a little over half way down the page, item 33a.

http://www.jeep4x4center.com/jeep-brake-parts/wrangler-yj/index.htm

Cheers
 

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This is somewhat pricey at $160, but it's another alternative to feeding the 8.8's calipers for those needing extra stopping power.

"...The BPM uses the excess fluid capacity available in the master cylinder bore to provide increased line pressure for the low volume requirements of a small piston caliper brake system, such as Ford Explorer, Corvette and GM rear disc brake calipers, and is ideal for use with rear drum brake systems."

http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html
 

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This is somewhat pricey at $160, but it's another alternative to feeding the 8.8's calipers for those needing extra stopping power.

"...The BPM uses the excess fluid capacity available in the master cylinder bore to provide increased line pressure for the low volume requirements of a small piston caliper brake system, such as Ford Explorer, Corvette and GM rear disc brake calipers, and is ideal for use with rear drum brake systems."

http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html
wow! what a thing!

clickable:
http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html

Photo:


Graph:


Text:
Recipient of the 2004 NSRA Best New Product, and Best New Safety products Awards

The ECI brake pressure multiplier (BPM) utilizes a unique step piston configuration to increase brake system pressures 50-60% where it's needed most- at higher pedal forces. The BPM uses the excess fluid capacity available in the master cylinder bore to provide increased line pressure for the low volume requirements of a small piston caliper brake system, such as Ford Explorer, Corvette and GM rear disc brake calipers, and is ideal for use with rear drum brake systems.

Due to it's step piston multiplication system, the BPM continues to provide 150% to 160% of inlet pressure as pedal effort increases, unlike a vacuum booster's assist, which remains constant after maximum
boost is reached with line pressure only increasing linearly with increased pedal force.

Low pressure operation and system filling remain unchanged, with pressure multiplication occurring only at the higher pressure levels required for optimum system performance. Each BPM is tailored to your exact system requirements during assembly to provide the
maximum increase in pressure and brake performance. A slight increase in pedal travel is required for operation.

The BPM is installed in the brake line and can be used with or without a vacuum booster. Chassis mounting is required..

EC-1500...................................$ 159.95

:cheers:
 

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BlackMagicBrakes.com

sorry that should be BlackMagicBrakes.com, with the stock pads no issues running my 33's run about 150 to your door for pair. Also you can get stock 8.8 cables from napa and rig em to tyour YJ main cable.
 

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For great service on brake or any other automotive cable try: cables.com I bought mine from them on a YJ with Ford Motorsport brakes. I contacted Ed, he knows his stuff and the cables are high quality and inexpensive.
 
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