What size brake shoes do I need for a 1999 XJ sport?

AUTOZONE lists:

Part Number: 538
Alternate Part Number: FB538
Warranty:Limited Lifetime
Application:
Except Police package
Notes:
9 x 2 1/2" brakes

OR


Part Number: 670
Alternate Part Number: FB670
Warranty:Limited Lifetime
Application:
Police package
Notes:
10 X 1 53/64" brakes

Is there a better package out there?

TNX.

Rick

If your rear axle is a D35 you need the smaller brake shoes. if your rear axle is a Chrysler 8.25 you need the larger brake shoes.