Print Page - 7.5 or 8.8

Title: 7.5 or 8.8
Post by: hellsing73 on September 12, 2009, 12:09:16 PM

i need to know if my axle has a locking rearend. i got the code off the door. and it said on the chart thats its a 3.27 put i dont know if thats the locking rearend or not. can anyone tell me. and its a 7.5 rear axle if that helps any

Title: 7.5 or 8.8
Post by: daminc on September 12, 2009, 12:15:16 PM

what else does the tag on the rear say?

Title: 7.5 or 8.8
Post by: hellsing73 on September 12, 2009, 12:16:45 PM

thats the problem i cant get to the rear tag

Title: 7.5 or 8.8
Post by: softtouch on September 12, 2009, 01:11:19 PM

Door tag AX code 5= 3.27 standard, E= 3.27 lock

Title: 7.5 or 8.8
Post by: hellsing73 on September 12, 2009, 01:27:40 PM

ok so i know 5=3.27 but if it had the locker it woud be 5e right?

Title: 7.5 or 8.8
Post by: vinnietbird on September 12, 2009, 01:35:55 PM

Is the car a 3.8?If so,my money says no Locker rear.

Title: 7.5 or 8.8
Post by: Beau on September 12, 2009, 02:39:44 PM

Jack the rear up, both wheels off of the ground, floor, or what-have-you.
Put the trans in neutral, and then spin by hand one of the wheels...if the opposite-side wheel/tire spins the SAME way, you have the trac-lok, if it spins the opposite way, you have an open diff.

Of course, if you do happen to have the locker, and it's worn the hell out, it may spin like an open diff.

BTW, does your car have quad shocks, and/or the rear swaybar?
Usually, the trac-loc cars have those, but not always.

Title: 7.5 or 8.8
Post by: the_intimidator03 on September 12, 2009, 03:36:55 PM

under ax code... E would be 3.27 trak-lok and 5 would be 3.27 open. ill bet you have an open.
Vinnie.. i do recall my parts car that i got it was an 88 cougar with 3.8. with 3.27 trak lok :-D

Title: 7.5 or 8.8
Post by: hellsing73 on September 12, 2009, 04:34:48 PM

ok its a 3.8 nest time i get a chance ill have to get the code off the houseing

Title: 7.5 or 8.8
Post by: Haystack on September 12, 2009, 07:22:58 PM

if its a locker on the axle tag, it will say 3L27

Title: 7.5 or 8.8
Post by: Tbird232ci on September 12, 2009, 07:31:19 PM

All of the 87 3.8L cars got an open rear 3.27.

Title: 7.5 or 8.8
Post by: hellsing73 on September 12, 2009, 08:40:16 PM

Title: 7.5 or 8.8
Post by: Haystack on September 13, 2009, 02:44:07 AM

I thought a locking differential was optional if you had the heavy duty/towing package?

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Technical => Drivetrain Tech => Topic started by: hellsing73 on September 12, 2009, 12:09:16 PM