Drivetrain 2 Rear end questions for Yas

Aoneill5.0 · Dec 3, 2022

Hello

1. Is this pic an 8.8 due to the Square-ish pot cover?
2. If when I open it up and find an open Diff, can I just find/order the Trac-Lok carrier.

89 5.0

At the Ford dealership the other day , they ran my VIN and said this car should have the 7.5 in it and it’s an LX 5.0 not GT model,
So I’m guessing someone went ahead and did the GT Ground KIT.

I’m learning quite a bit about this car I’ll say, some good, some not so great, but if the Diff can be converted I guess that’s on the win side..

Thanks Folks.

General karthief · Dec 3, 2022

If it is an open dif it can be converted, I'm fairly certain 87 up V8 stangs came with 8.8 traction lock rear. GT and LX.

Aoneill5.0 · Dec 3, 2022

ok, great,
I’m gonna open it up tmr and hope to see a set a clutches, if not, then I’ll be looking for a carrier that will fit at the wrecker hopefully

Thankyou

General karthief · Dec 3, 2022

Just check the sticker on the drivers door jamb, if you can't read it or it's missing jack up one rear wheel, with trans in neutral, try to spin the tire, if it spins with no resistance it's an open dif.
there should be a tag on one of the cover bolts too. I see in the pic yours is missing, that cover has been removed in the past.

limp · Dec 3, 2022

General karthief said:
If it is an open dif it can be converted, I'm fairly certain 87 up V8 stangs came with 8.8 traction lock rear. GT and LX.

I think it might be earlier than that, 85-86......

General karthief · Dec 3, 2022

limp said:
I think it might be earlier than that, 85-86......

i think it started in 86, at least that's what my research for this thread found, I like to check my work, the janitor has a fit when I give bad advice.

limp · Dec 3, 2022

Here are two pics of the 7.5 from my 83

rednotch · Dec 3, 2022

Aoneill5.0 said:
Hello

1. Is this pic an 8.8 due to the Square-ish pot cover?
2. If when I open it up and find an open Diff, can I just find/order the Trac-Lok carrier.

89 5.0

At the Ford dealership the other day , they ran my VIN and said this car should have the 7.5 in it and it’s an LX 5.0 not GT model,
So I’m guessing someone went ahead and did the GT Ground KIT.

I’m learning quite a bit about this car I’ll say, some good, some not so great, but if the Diff can be converted I guess that’s on the win side..

Thanks Folks.

All 87-93 factory 5.0 cars had 8.8's if the 8th digit in the vin is E its a factory v8. The stock track lock can be rebuilt ,most will upgrade to a 31 spline unit with new axles. Explorers, are a good source for both gears and a 31 spline unit, just need axles.

Mustang5L5 · Dec 5, 2022

rednotch said:
All 87-93 factory 5.0 cars had 8.8's if the 8th digit in the vin is E its a factory v8.

This.

If the 8th digit is an E, then it's a factory V8. An LX 5.0 came with an 8.8 with a limted slip differential. That's an 8.8 in the OP's pic. There's a limited slip inside, although it might be worn out and need a rebuild

Willybill32 · Dec 10, 2022

rednotch said:
All 87-93 factory 5.0 cars had 8.8's if the 8th digit in the vin is E its a factory v8. The stock track lock can be rebuilt ,most will upgrade to a 31 spline unit with new axles. Explorers, are a good source for both gears and a 31 spline unit, just need axles.

Actually, the 8.8 traction look started in the ‘86 V8 cars, GT and LX.

KRUISR · Dec 10, 2022

Decode your own VIN as to whether it is a LX or GT. It will tell you in the VIN whether it was born an LX, GT, 4 cyl or V8.

1989 Ford Mustang VIN Information

Decode the 1989 VIN numbers and data sheets with our easy to use guide and tables.

www.mustangspecs.com

General karthief · Dec 10, 2022

Lots of mustang decode info here: http://foxchassis.com/decoders/
AND he is a member here.

rednotch · Dec 10, 2022

Willybill32 said:
Actually, the 8.8 traction look started in the ‘86 V8 cars, GT and LX.

He said its an 89... I never said when they when they went to an 8.8 just that all 87-93 aero v8 cars had one.

Drivetrain 2 Rear end questions for Yas

Aoneill5.0

Member

General karthief

wonder how much it would cost to ship you a pair

Aoneill5.0

Member

General karthief

wonder how much it would cost to ship you a pair

limp

wrap a little cheese around it and its a done

General karthief

wonder how much it would cost to ship you a pair

limp

wrap a little cheese around it and its a done

rednotch

I'd like to remain having one chocolate starfish

Mustang5L5

That is…until I whipped out my Bissell

Willybill32

But at least it's tight!

KRUISR

1989 Ford Mustang VIN Information

General karthief

wonder how much it would cost to ship you a pair

rednotch

I'd like to remain having one chocolate starfish

Similar threads

Drivetrain 2 Rear end questions for Yas

Member

wonder how much it would cost to ship you a pair

Member

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

I'd like to remain having one chocolate starfish

That is…until I whipped out my Bissell

But at least it's tight!

wonder how much it would cost to ship you a pair

I'd like to remain having one chocolate starfish

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