HELP ASAP In the middle of a spec install!!!!
-Ryan

here's some other misc info about Spec Stage 3 clutch installs and the shim/spacer, found while looking for the measurement:
https://ls1tech.com/forums/manual-transmission/199135-spacer-comes-spec-clutch.html
https://ls1tech.com/forums/manual-transmission/264285-shim-spec-clutches-where-does-go.html
https://ls1tech.com/forums/manual-transmission/256987-spec-3-shim-no-shim.html
https://ls1tech.com/forums/manual-transmission/223251-more-clutch-problems.html
https://ls1tech.com/forums/manual-transmission/115482-spec-3x-did-you-use-shim.html

