The Ford Torino Page Homepage
Forum Home Forum Home > Model Specific Forum > 1972-1976 Ford and Mercury
  New Posts New Posts RSS Feed - Flywheel, ring gear
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Flywheel, ring gear

 Post Reply Post Reply
Author
Message
Markb73gtorino View Drop Down
Member
Member
Avatar

Joined: 23-September-2018
Location: Corpus Christi
Status: Offline
Points: 78
Post Options Post Options   Thanks (0) Thanks(0)   Quote Markb73gtorino Quote  Post ReplyReply Direct Link To This Post Topic: Flywheel, ring gear
    Posted: 14-August-2019 at 10:29PM
Hello all,
My 73 Gran Torino has a 351C. Pretty sure I have a flat spot in my ring gear. It grinds when I try to start the motor occasionally. When I pull the transmission should I press on a new ring gear or replace the flywheel that will have a new ring gear? I understand money plays heavily into this decision. I am leaning toward a new fly wheel and a new starter and rear main seal while I have it out. However, there are many choices for flywheel replacement. Any advice would be great. Thanks in advance for the guidance and wisdom. 
Mark
Back to Top
Rockatansky View Drop Down
Senior Member
Senior Member


Joined: 30-July-2010
Location: On The Road
Status: Offline
Points: 6059
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 15-August-2019 at 4:10PM
what transmission?
72 GT Ute
   
Back to Top
Markb73gtorino View Drop Down
Member
Member
Avatar

Joined: 23-September-2018
Location: Corpus Christi
Status: Offline
Points: 78
Post Options Post Options   Thanks (0) Thanks(0)   Quote Markb73gtorino Quote  Post ReplyReply Direct Link To This Post Posted: 16-August-2019 at 12:19AM
Well, it is a 3 speed automatic, I guess that would help. Silly me. It is the stock transmission. 
Back to Top
Rockatansky View Drop Down
Senior Member
Senior Member


Joined: 30-July-2010
Location: On The Road
Status: Offline
Points: 6059
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 17-August-2019 at 3:06AM
then you'll need a complete flexplate, and the exact engine /  transmission combo to get the correct flex.
the ring gears are welded onto the flexplate not press fit like on a manual trans flywheel.

i'd do some shopping around as the prices for the same part vary wildly, like up to $100 or more sometimes. SFI flexplates are stronger but tend to crack and fail sooner than OEM quality because they're thicker metal and resist flexing more than their thinner more cost effective cousins. check with Bulkpart to see if they can supply your flex, they traditionally show low prices

http://www.transmissionpartsusa.com/searchresults.asp?Submit=Go&Search=flexplates

if you get confused as to which is correct

72 GT Ute
   
Back to Top
Markb73gtorino View Drop Down
Member
Member
Avatar

Joined: 23-September-2018
Location: Corpus Christi
Status: Offline
Points: 78
Post Options Post Options   Thanks (0) Thanks(0)   Quote Markb73gtorino Quote  Post ReplyReply Direct Link To This Post Posted: 17-August-2019 at 12:55PM
Thanks,
I really appreciate the help. There is a auto mechanic shop at the Navy base near me that I can use that has a lift and such. I work alone so getting this done will be tricky. I plan to replace the rear main seal while I have the trans mission out. I hope to get it done in a day. Is that realistic? I may be able to get help from a friend of mine for a second set of hands. I will call the people in the link you sent. Thanks again. You are a great American.
Mark
Back to Top
Rockatansky View Drop Down
Senior Member
Senior Member


Joined: 30-July-2010
Location: On The Road
Status: Offline
Points: 6059
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 17-August-2019 at 3:27PM
if you have a leak i'd make sure it's really the rear main before diving into it. valve covers and intake manifold rear china wall seals can be mistaken for rear main leaks.

72 GT Ute
   
Back to Top
californiajohnny View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 05-October-2013
Location: winlock, wa
Status: Offline
Points: 14606
Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 17-August-2019 at 8:02PM
Originally posted by Rockatansky Rockatansky wrote:

if you have a leak i'd make sure it's really the rear main before diving into it. valve covers and intake manifold rear china wall seals can be mistaken for rear main leaks.

and the sending unit is back there too, just like a 460! could be leaking and running down seen it beforeConfused
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
Back to Top
Rockatansky View Drop Down
Senior Member
Senior Member


Joined: 30-July-2010
Location: On The Road
Status: Offline
Points: 6059
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 18-August-2019 at 6:03AM
Originally posted by californiajohnny californiajohnny wrote:

and the sending unit is back there too, just like a 460! could be leaking and running down seen it beforeConfused


and that leaky Censored

if you're planning to do the rear main as a preventive measure skip it,

you're more likely to cause a problem than to fix one that doesn't exist Wink

if it ever does leak just pull the motor and reseal the whole thing.

you have to let the crank drop down to get the old seal out and a new seal in, it's harry in the car.

72 GT Ute
   
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.109 seconds.