This is a genuine Dana/Spicer differential side shim kit for the Dana 44 differential found in some Jeep JK applications. These were used in front and rear applications. Shims included in this kit are as follows:
2003782-312 0.123″
2003782-320 0.126″
2003782-328 0.129″
2003782-335 0.132″
2003782-343 0.135″
2003782-351 0.132″
2003782-358 0.141″
2003782-363 0.143″
2003782-368 0.145″
2003782-376 0.148″