Gerry,
You may have several different spring rates, instead of two different rates (one rate for the front, and another rate for the rear).
You might have the right rear and the right front swapped. Check the wire diameter of the springs with a dial or digital caliper. The larger diameter should be in the rear, and the smaller diameter in the front.
The shocks themselves are the same front and rear. Be aware that at least some Vendors sell shocks that are shorter in overall length than the original shock. You may have gotten different length shocks.
Let us know what you find.
John
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