Ring gear differances
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
Ring gear differances
Hey guys 1 of the other members is doing a 6.9 to 7.3 swap. He needs a 7.3/C6 auto tranny flywheel. I have 1 but it has a few bad teeth on ring gear. Autozone and a few others list a ring gear for the clutch flywheel but not Autotranny flywheel. I am guessing they have never heard of an automatic with flywheel but..... Is this the same ring gear/will it work? Don't want to ship this flywheel from St louis to Oregon and find he can't use it. 
Want to get this to him so he can get his truck fixed. Don't want to know what shipping is going to be.
Want to get this to him so he can get his truck fixed. Don't want to know what shipping is going to be.
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
The ring gear is not on the flex plate it is on the flywheel. The flex plate bolts inside the flywheel. Only thing I ever saw like it. I can post a picture later if you want.
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
It actually makes sense to me. Without that big flywheel the vibrations of that engine would be alot worse. I don't know why the seperate flex plate unless to use an existing flywheel they already had.
Posting Guru
Joined: Feb 2011
Posts: 2,216
Likes: 0
From: Princeton MN
Yes I have the same 2 part flywheel/plate setup. But I think the 7.3's with the autos were different then the 6.9's, and were a one piece affair.
https://www.ford-trucks.com/forums/1...questions.html
https://www.ford-trucks.com/forums/1...questions.html
Laughing Gas
Joined: Aug 2003
Posts: 919
Likes: 4
From: Newberg Oregon
Trending Topics
i ain't rite
Joined: Mar 2005
Posts: 65,511
Likes: 5,565
From: Marlboro Mental Hospital.
auto trans flex plate is different from the manual flywheel
the ring gear is part of the flex plate for structural integrity
and even with that said, they still crack.
the ring gear is part of the flex plate for structural integrity
and even with that said, they still crack.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
I swapped a 6.9 from an 87 with C6 into an 89 that 7.3 C6. I will try and get picture tomarrow of the flywheel flexplate for those that haven't seen it.
Type4 he is about 80 mile south of you. IMed him to pop in this thread see if he is interested.
Type4 he is about 80 mile south of you. IMed him to pop in this thread see if he is interested.
i ain't rite
Joined: Mar 2005
Posts: 65,511
Likes: 5,565
From: Marlboro Mental Hospital.
the C-6 uses a one piece flex plate just like a gas engine uses.
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
I pulled a 7.3 out of my 89 that has a C6 and installed a 6.9 that was attached to a C6. Both had a seperate flywheel and flex plate. I don't believe the trans in my 89 is original though.
i ain't rite
Joined: Mar 2005
Posts: 65,511
Likes: 5,565
From: Marlboro Mental Hospital.
weird. the C-6 i put in my 88 used a one piece flex plate. it did have a crank shaft strengthener plate, but it was only a little larger than the crank flange.
and the 4 other C-6 trucks had the same setup
and the 4 other C-6 trucks had the same setup
Thread Starter
|
Senior User
Joined: Sep 2008
Posts: 318
Likes: 1
From: Portage Des Sioux, Mo
Flywheel/flexplate from 7.3 is sitting in back of pickup. Weird setup, flexplate actually sits inside flywheel.
Ford Truck Enthusiasts Forums - rolape2's Album: Flywheel
Shows picture in my album. Obiviously some works has been done on this truck before I got it. I was told by PO that his uncle special ordered this truck with the C6. I beleive it had a E4OD and they swapped in C6. but don't know. This is the same configurationthe 6.9 had though.
Ford Truck Enthusiasts Forums - rolape2's Album: Flywheel
Shows picture in my album. Obiviously some works has been done on this truck before I got it. I was told by PO that his uncle special ordered this truck with the C6. I beleive it had a E4OD and they swapped in C6. but don't know. This is the same configurationthe 6.9 had though.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Flywheel/flexplate from 7.3 is sitting in back of pickup. Weird setup, flexplate actually sits inside flywheel.
Ford Truck Enthusiasts Forums - rolape2's Album: Flywheel
Shows picture in my album. Obiviously some works has been done on this truck before I got it. I was told by PO that his uncle special ordered this truck with the C6. I beleive it had a E4OD and they swapped in C6. but don't know. This is the same configurationthe 6.9 had though.
Ford Truck Enthusiasts Forums - rolape2's Album: Flywheel
Shows picture in my album. Obiviously some works has been done on this truck before I got it. I was told by PO that his uncle special ordered this truck with the C6. I beleive it had a E4OD and they swapped in C6. but don't know. This is the same configurationthe 6.9 had though.