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- Full Size K5 (1969-1991) GMT415 (1992-1994) Tech (https://blazerforum.com/forum/full-size-k5-1969-1991-gmt415-1992-1994-tech-42/)

- - flywheel (https://blazerforum.com/forum/full-size-k5-1969-1991-gmt415-1992-1994-tech-42/flywheel-14312/)

tom1337

11-09-2007 10:39 AM

flywheel

'90 full size

Is there any way to tell how many teeth (168 or 153)my flywheel has without removing the shield?

swartlkk

11-09-2007 01:31 PM

RE: flywheel

The 153 tooth flywheel is 12.75" in diameter while the 168 tooth flywheel is 14" in diameter. However that doesn't answer your question... I don't know of any way to tell how large the flywheel is without the cover off...

Chevy Lover

11-10-2007 02:10 AM

RE: flywheel

You can remove the starter motor, paint a tooth on the flex plate with white paint, then turn the flexplate with a flat blade screwdiver til you reach the painted tooth again. Don't lose count...:)

lastcoupe

11-10-2007 12:18 PM

RE: flywheel

If it has the original engine, stop by or call any dealer with your VIN and they should be able to tell you, or at least give you a part number which you can have cross-referenced at any parts store. I beleive that all engines with the one-piece real main seal (1987 and up) had the smaller ring gear on the flexplate (153 tooth).

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