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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 84chevysilverado on April 04, 2010, 02:19:25 pm

Title: flex plate teeth number
Post by: 84chevysilverado on April 04, 2010, 02:19:25 pm

I have a 1984 chevy with a 305 i bought a new starter which has 9 teeth does anyone no if i need the 153 tooth or the 168 tooth flex plate?

Title: Re: flex plate teeth number
Post by: beastie_3 on April 04, 2010, 03:02:41 pm

Did you compare it to your old starter?

Title: Re: flex plate teeth number
Post by: Lt.Del on April 05, 2010, 08:34:51 am

someone correct me if I am wrong, but, if the starter bolt patter are in a linear line paralell with the engine block end, the starter is for a 305 w/ the smaller flexplate.  If the two starter bolts are off set, not in paralell with the engine block end, the starter is for a 350 or 400 with the 168 tooth flex.  At least that is what i read years ago somewhere and it seems to work when i strip parts off at salvage yards--that info works for my truck in matching up parts. I know I have the off set two bolt hole starter and i have the 168 tooth flex.

Title: Re: flex plate teeth number
Post by: 84chevysilverado on April 05, 2010, 09:10:23 am

no i cant compare it to the old one the guy thta had the truck before me put a new starter on and it grinds a bit. so i rebuilt the motor and i wanna fix this problem. i will let ya no how many teeth my flexplate has now.

Title: Re: flex plate teeth number
Post by: Irish_Alley on April 05, 2010, 06:46:05 pm

There are two diffrent sizes on the flex plate about an inch diffrents if its grinding it should only need shims if it was the wrong size flex plate then I don't think it would contact at all

Title: Re: flex plate teeth number
Post by: 84chevysilverado on April 06, 2010, 09:10:51 am

ok maybe thats what was wrong i counted the teeth on the old one and it was 163