can a smaller pulley from a series 1 -3800 supercharger be used to replace the standard pulley on a series 2 -3800 supercharger ??

so, No One Knows if these pullies will interchange? shaft diameter/alignment ?

I believe the shaft sizes of the M62 and M90 superchargers are the same as they use the same snout shaft bearings BUT its a guess if the pulleys provide the same positioning for belt alignment.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

Series one pulleys are on a straight keyed shaft, series 2 pulleys I believe have a tapered shaft. So they don’t interchange.

thanks. I don't want to just toss the series 1 if I can use the smaller pulley.