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69 TH-400 Flexiplate Question, Does anybody know...

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Old 08-15-2001, 12:13 PM
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Smokehouse69
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Default 69 TH-400 Flexiplate Question, Does anybody know...

how many teeth the flexiplate for a 69 model with a TH-400 has? Is it 153 or 162? This is in reference to the GM mini-starter post by MIKER a couple of day ago.
Thanx


[Modified by Smokehouse69, 10:14 AM 8/15/2001]
Old 08-15-2001, 12:18 PM
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gkull
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Default Re: 69 TH-400 Flexiplate Question, Does anybody know... (Smokehouse69)

All stock small blocks came with a 153. most if not all mini's can be adjusted for each kind. Also 75% engaugement is good according to my mini-sarter tech line.
Old 08-15-2001, 12:31 PM
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Smokehouse69
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Default Re: 69 TH-400 Flexiplate Question, Does anybody know... (gkull)

Thanks George.
Old 08-15-2001, 01:41 PM
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Joe Lucia
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Default Re: 69 TH-400 Flexiplate Question, Does anybody know... (gkull)

gkull-----


I used to think that all THM-400 flexplates were 153 teeth, too. However, I found out differently (much to my embarrassment). As it turns out, 68+ with THM-400 use a 168 tooth ring gear flexplate.
Old 08-15-2001, 02:06 PM
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gkull
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Default Re: 69 TH-400 Flexiplate Question, Does anybody know... (Joe Lucia)

Thanks Joe!

I have also seen a 168 on a 70's 4X4 pickup. I tend to think it wasn't that common.

I put a 168 on mine, for 20 years and have never had starter motor problems.
Old 08-15-2001, 02:10 PM
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norvalwilhelm
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Default Re: 69 TH-400 Flexiplate Question, Does anybody know... (Smokehouse69)

My 75 400 came with the 168 tooth flexplate.
Norval

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