The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-27-2008, 11:01 PM   #1
andys70c10
Registered User
 
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
flywheel

I am converting my truck from a 3 spd. manual to a th350, my ? is this do I need to change my flywheel? & if so what size, # of teeth do I use? truck has a crate 350.
andys70c10 is offline   Reply With Quote
Old 04-27-2008, 11:09 PM   #2
Sinister
Between Trucks...
 
Sinister's Avatar
 
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
Re: flywheel

You'll need a flexplate to replace your flywheel. Sorry don't know the size offhand, someone will chime in I'm sure...
__________________
Beat it to fit,
Paint it to match...

Last edited by Sinister; 04-27-2008 at 11:10 PM.
Sinister is offline   Reply With Quote
Old 04-27-2008, 11:26 PM   #3
andys70c10
Registered User
 
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
Re: flywheel

will this work?http://www.partsamerica.com/ProductD...pe=267&PTSet=A
andys70c10 is offline   Reply With Quote
Old 04-28-2008, 12:33 AM   #4
Sinister
Between Trucks...
 
Sinister's Avatar
 
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
Re: flywheel

Not a flywheel. With an auto tranny you need a flexplate: http://store.summitracing.com/egnsea...=KeywordSearch
__________________
Beat it to fit,
Paint it to match...
Sinister is offline   Reply With Quote
Old 04-28-2008, 01:02 AM   #5
70GMCer
Senior Member
 
70GMCer's Avatar
 
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
Re: flywheel

count the number of teeth on your flywheel and that will be the number of teeth you'll need for your flexplate.
__________________
1997 GMC Sierra Ext

1965 Mustang
70GMCer is offline   Reply With Quote
Old 04-28-2008, 05:48 AM   #6
andys70c10
Registered User
 
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
Re: flywheel

ok I think I understand, also will I be able to reuse my old starter?
andys70c10 is offline   Reply With Quote
Old 04-28-2008, 07:58 AM   #7
wzuke
Registered User
 
wzuke's Avatar
 
Join Date: Nov 2007
Location: Marion, IL
Posts: 112
Re: flywheel

Yes, make sure you get the correct flexplate.
wzuke is offline   Reply With Quote
Old 04-28-2008, 01:52 PM   #8
70GMCer
Senior Member
 
70GMCer's Avatar
 
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
Re: flywheel

Quote:
Originally Posted by wzuke View Post
Yes, make sure you get the correct flexplate.
Yes, if you use the correct numbered teeth as stated above.
__________________
1997 GMC Sierra Ext

1965 Mustang
70GMCer is offline   Reply With Quote
Old 04-28-2008, 03:07 PM   #9
JimKshortstep4x4
Senior Member
 
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
Re: flywheel

Since the stick has a bell housing where the starter bolts up with three bolts to the bell housing, a different starter will be needed. On the automatics the starter bolts to the block using two bolts. You will want the starter to match the flex plate.

Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end
1965 Impala SS 400 sbc, Muncie rock crusher
1966 Impala SS 396 bbc, TH 400
1969 El Camino, 350 sbc, TH 350
1971 Snowplow built on a Blazer frame
1972 GMC Short bed, stepside, TH 400, 427 BBC
JimKshortstep4x4 is offline   Reply With Quote
Old 04-29-2008, 06:55 AM   #10
wzuke
Registered User
 
wzuke's Avatar
 
Join Date: Nov 2007
Location: Marion, IL
Posts: 112
Re: flywheel

Quote:
Originally Posted by JimKshortstep4x4 View Post
Since the stick has a bell housing where the starter bolts up with three bolts to the bell housing, a different starter will be needed. On the automatics the starter bolts to the block using two bolts. You will want the starter to match the flex plate.

Jim
Not!!
wzuke is offline   Reply With Quote
Old 04-29-2008, 07:24 AM   #11
67_C-30
I have a radical idea!
 
67_C-30's Avatar
 
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
Re: flywheel

Quote:
Originally Posted by wzuke View Post
Not!!
What do you mean NOT? He's exactly right. The starters are different between a 3 speed manual and TH350.

You will need a 168 tooth 14" flexplate and matching starter. Just get the parts store to look up a stater for your model truck with a TH350 and you'll be good to go.
__________________
'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435
‘72 C-10 SWB , 350 4bbl, TH350
'69 C-10 SWB , 250 L6, 3 OTT
'69 GMC C3500, dump truck, 351 V6, NP435
'84 M1009 CUCV Military Blazer

67 C-30 Turbodiesel build thread
http://67-72chevytrucks.com/vboard/s...d.php?t=254096

My trucks
http://s226.photobucket.com/albums/d...ediafilter=all

Member of the 1-Ton Club!

Last edited by 67_C-30; 04-29-2008 at 07:27 AM.
67_C-30 is offline   Reply With Quote
Old 04-29-2008, 08:10 AM   #12
jsbgump
Gone Fishing
 
jsbgump's Avatar
 
Join Date: Aug 2005
Location: Fort Worth, Texas 76135
Posts: 12,361
Re: flywheel

168 tooth flywheel. depending on your power rating I might even order an SFI approved one
__________________
68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started
2022 Hyundai Tucson Limited
2019 Chevy Traverse Redline Edition Wifes Ride
Build Thread

http://67-72chevytrucks.com/vboard/s...=1#post3483616
jsbgump is offline   Reply With Quote
Old 04-29-2008, 02:19 PM   #13
70GMCer
Senior Member
 
70GMCer's Avatar
 
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
Re: flywheel

Forgot about the starter being a stick. Yes an auto starter will be needed. Either way, just match the starter bendix head for either a 168 tooth one or the 153 tooth one.
__________________
1997 GMC Sierra Ext

1965 Mustang

Last edited by 70GMCer; 04-29-2008 at 02:21 PM.
70GMCer is offline   Reply With Quote
Old 04-29-2008, 05:20 PM   #14
Sinister
Between Trucks...
 
Sinister's Avatar
 
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
Re: flywheel

Quote:
Originally Posted by jsbgump View Post
168 tooth flywheel. depending on your power rating I might even order an SFI approved one
Flexplate, not a flywheel for an automatic...
__________________
Beat it to fit,
Paint it to match...
Sinister is offline   Reply With Quote
Old 04-29-2008, 07:54 PM   #15
andys70c10
Registered User
 
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
Re: flywheel

yes this http://www.partsamerica.com/ProductD...pe=267&PTSet=A is listed as a flywheel but looks the same as a flexplate http://store.summitracing.com/partde...I&autoview=sku I think the aps jus has them listed the same, cause its listed for auto tranny.
andys70c10 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:40 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com