A Body 741 Sure Grip Value.

DoctorDiff said

Borg Warner made Spin Resistant (cone) differentials for many different rearends over the years. The 1959 ad in post # 45 does not show or mention anything about the 8.75" version, which was first installed by the factory in the 1969 model year.

1. Cone sure-grips were not installed by the factory in 742 cases.

2. Clutch sure-grips were not installed by the factory in 489 cases.

3. '69 and newer (model year) 741 cases came with cone sure-grips from the factory.

4. '68 and older (model year) 741 cases came with clutch sure-grips from the factory.

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Interesting, thanks.

So its highly likely my '69 Barracuda has the cone type then? Looking forward to finding out. The Barracuda IVe found in a field is also a '69.

Ive been told one of the main reasons the UK got HD parts and 8 3/4 Sure-grips for the UK 273 and 318 cars is Chrysler did not want to deal with warranty claims on these cars any more than they had to so gave them beefed up components. Ive also been told that due to the twisty and narrow UK roads UK cars would need/expect better handling and brakes that the average US car. Not sure of the truthfulness of this though.

I guess what you've written above is not set in stone though?