Diff ?? Need help

[Blade king]

I have done the Search thing but have not found any info on this

I need to no if a Lincoln Mark VIII aluminum 8.8 diff is a good upgrade for my fd ???
Also will it fit with the Samburg kit ?

Need to get some info before Thursday .

Thanx in advance

[Blade king]

No one has info on this ??

[Ruler_Mark]

housing is the same for most 8.8s. the swap kit calls for said diff because of the spline so you can buy DSS axle bars. if you get a mark viii diff from a junk yard you might end up spending more converting it to be useable than buying a cobra diff outright

[Blade king]

Thanx u mark
I will look for a cobra rear then

[piglet]

i was able to get a lincoln rear for $65 at a local junk yard. but i ended up buying a new 31 spine cobra carrier, and new gears. it was worth it to me because i didnt want 3.55 gears which is what the cobra has and now i have the peace of mind knowing everything inside is brand new.

[Tictakman]

i sourced out a 93 thunderbird that had a steel case 8.8... works well so far.

Z

[Ruler_Mark]

From V8S2000 board:

Ford 8.8 IRS Info
ALL 99/01/03/04 Cobra axles have a 28 Spline outer that goes into the hub

99 Cobra axles have a 28 spline inner that goes into the diff

01 Cobra's came with stronger axles than 99

01/03/04 Cobra axles have a 31 spline inner that goes into the diff

03/04 Cobra's came with stronger axles than 99/01

03/04 Cobra's came with Carbon kevlar clutch packs

03/04 Cobra's came with larger pinion flange than 99/01

All Cobra's came with limited slip

There was not a 2000 or 2002 Cobra released on the American market.



The 8.8 IRS was offered in the following vehicles

99/01/03/04 Cobra

1989-1997 Thunderbird Supercoupe (All Posi-traction)
1992-1997 Thunderbird V-8 models with rear disc brakes(some posi-traction)3.08, 3.27
1992-1997 Lincoln Mark VIII (All aluminum carrier, most non-posi-traction) 3.07, 3.08, 3.27, 3.55, 3.73
1989-1992 Mercury Cougar XR-7, supercharged V-6 (All posi-traction)
1993-1997 Mercury Cougar V-8

02+ Explorer/Mountaineer = 3.55 and 3.73 open, 3.73 LSD , 31 spline

To determine the gear ratio, and whether or not the unit has posi-traction, look at the tag that is attached to one of the differential cover bolts. The first 4 spaces signify the gear ratio and whether or not it has posi-traction. If the unit has posi-traction, then the second space will have an L in it representing (limited slip), the remaining spaces specify the gear ratio. For example, 2 L 7 3 means posi-traction with a 2.73:1 gear ratio. Most people pay a salvage yard between $300-$400 for the donor parts. Also, Ford Motorsports sells a 15lb. lighter aluminum carrier with gears and posi-traction for around $650.




Hope this helps