i gave the machine shop the 2 flywheels and all the measurements. then i sat the engine on end and sat the tranny in the clutch and pilot bearing then used that as a reference for the adapter plate. i also had the shop just neutral balance the flywheel setup.

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93 b2200 EFI turbo, reg cab/short box, F2t swap build thread here
92 B2600i Cab plus getting a 82 3.0L 5cyl 617 mercedes Turbo Diesel build thread here
96 GMC 1500 z71 4x4 6.5L turbo diesel
Diesel all the way!!!