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View Full Version : wtb: built 8.8 from 86-93 mustang with 5 lug and 31 spline or stronger



AutoMods
07-24-2011, 11:57 PM
wtb: built 8.8 from 86-93 mustang with 5 lug and 31 spline or stronger. I need the complete rear. Looking for a 3.27 gear or 3.55

85XR7Project
07-25-2011, 07:52 AM
86-93 was 28 spline, you'd have to go with a newer 8.8 if you want that. 5 lug can be converted to relatively easy.

Sleeping
07-25-2011, 08:00 AM
I have a 4 lug have not opened it up yet see how many splines or anything. Suppose to be out of a 94 cobra

allgo
07-25-2011, 08:14 AM
If u need them I have 31 spline axles and spool I sell to you cheap..

85XR7Project
07-25-2011, 08:21 AM
I have a 4 lug have not opened it up yet see how many splines or anything. Suppose to be out of a 94 cobra

94 would be 4 lug, probably a 93 cobra.

snickerlicker
07-25-2011, 08:53 AM
^ Wrong! 94 up is 5 lug.

allgo
07-25-2011, 09:06 AM
^ Wrong! 94 up is 5 lug.

oh snap...

black88gt
07-25-2011, 09:14 AM
94 and up is 5 lug and longer

Sleeping
07-25-2011, 09:26 AM
94 and up is 5 lug and longer

Because of the abs sensor ring correct? If i remeber right from reading the housings are all the same length.

black88gt
07-25-2011, 09:43 AM
Because of the abs sensor ring correct? If i remeber right from reading the housings are all the same length.

Depends on where you measure; the housings are the same but the axles and bracketry are different due to disk brakes

Sleeping
07-25-2011, 09:55 AM
I know the one I got is a 4lug with abs sensor rings and disc brakes I was told was out of 94 cobra but thats just what I was told. I have not opened it up to see how many splines. I see no tag or anything to idenify it?

black88gt
07-25-2011, 10:06 AM
Should be a metal tag held on by one of the diff cover bolts. If its not there it may be a mix of parts. It could also be a TC or Lincoln axle. IIRC a couple years of TCs came w/ 4 lug and discs but I have no idea as to ABS.

AutoMods
07-25-2011, 01:30 PM
86-93 was 28 spline, you'd have to go with a newer 8.8 if you want that. 5 lug can be converted to relatively easy.

yea I'm looking for aftermarket 31 spline axles and with an aftermarket 31 spline limited slip diff. someone who built up their rear and abandoned their project or upgraded or part out, etc . Not sure how common it is that I'll find everything i'm looking for used. i'll try to buy everything at once if possible , if not I may source the individual parts. winter project, no hurry.

sleeping, the 94 on up stuff wasn't listed in the list of rears on Grannys website so I assume its not the ideal rear for this conversion. perhaps the wrong length or pinion offset

Looking for stock width 59.5 axle flange to axle flange but narrower might work .

if anyone is interested here is the do it yourself kit

http://grannys.tripod.com/solidaxle.htm
http://grannys.tripod.com/TASAinstallguide2.htm
http://members.tripod.com/~grannys/TASA8500w.jpg

Sleeping
07-25-2011, 01:55 PM
Well I know it came out of a fox body and the only difference according to grannies website is the abs sensor rings. Which would only have to swap axles to achive the correct lenghth. I was originaly going to use it for my swap but now im linking I'll just go irs 8.8. Im going to look it over tonight see if I can find a tag or open it up see what its got inside.

'86-'93 Ford Mustang 8.8...
...59-1/2" flange/flange width (exact same as the '86-'91 RX-7)
...4 on 4-1/4" lug pattern, easily re-drilled to RX-7 4 or 5 on 4-1/2" pattern
...came std w/tracloc clutch style diff
...Both L&R axles are 29-1/8" long 28 spline axles
...V8's came with 2.73 or 3.08 ratios

'87-'88 Thunderbird Turbo Coupe...
...61-1/2" flange/flange width
...same housing width as '86-'93 Mustangs, but 1" longer axles to make room for ABS sensors
...4 on 4-1/2" lug pattern (same as the RX-7), easily re-drilled to RX-7 5 on 4-1/2"
...came std w/tracloc clutch style diff
...Both L&R axles are 30-1/8" long 28 spline axles
...5spd cars came with 3.55 gears, automatic cars came with 3.73
...standard w/ disc brakes

'95-'01 Explorer...
...59-1/2" flange/flange width
...5 on 4-1/2" lug pattern
...un-equal length 31 spline axles (2-3/16" pinion offset)
...std disc brakes w/ 7/16" x 11.25 rotors

AutoMods
07-25-2011, 02:19 PM
let me know what you find eric

AutoMods
07-25-2011, 02:29 PM
and measure from flange to flange

85XR7Project
07-25-2011, 11:09 PM
^ Wrong! 94 up is 5 lug.

Yeah, that was a typo. Nice catch though.

85XR7Project
07-25-2011, 11:13 PM
Should be a metal tag held on by one of the diff cover bolts. If its not there it may be a mix of parts. It could also be a TC or Lincoln axle. IIRC a couple years of TCs came w/ 4 lug and discs but I have no idea as to ABS.

87-88 turbo coupes had 4 lug with rear discs, it always pissed me off that my XR7 had the crappy ass 7.5 rear and the same car with a Ford badge got an 8.8.