The 603 will bolt to the 722.4 transmission but I believe the torque developed by the 603 will tax the 722.4. Exhaust will be a slightly latger diameter and different placement. The 603 is equipped with a slightly larger radiator and air intake. If you go with the 722.3 transmission from the 87 then you will need what Rollguy mentioned above and also the larger yoke for the differential. With the 722.3 you will also need the speedo cable and netural safety wiring harness.

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92 e300d2.5t
01 e320
05 cdi
85 chev c10