Here's a bunch of info and dimensions about GM/Chevy manual transmissions.

T5 vs T56 vs NV3500 2wd
SM465 vs NV4500 vs ZF6 4wd
Update: shifter position matches on all my fullsize truck transmissions. However, most SM465s had the shifter a couple inches further forward. Mine is the GMT400 style 8891 with the aluminum top plate.

Info on the bell housings, input shafts, output shafts, clutch and flywheel combinations, release bearings, slave cylinders

4spd vs 5spd vs 6spd

How to make an old v6 or SBC or BBC transmission fit an LS engine LR4 LM7 LQ4 LQ9

My 4.8 Beretta swap is getting an LS T56 and my 5.3 Blazer swap is getting an SBC SM465

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http://gearheaddezign.com/
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