Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Which flexplate do i need?

Thread Tools
 
Search this Thread
 
Old Nov 22, 2006 | 01:28 AM
  #1  
hoxiii's Avatar
hoxiii
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
Which flexplate do i need?

I have a 79 F150 300-6 4x2 C4 automatic that needs a flexplate put in it. All of the parts houses I've called around to have two listings for the flexplate, one around $35 and the other around $60 but no one can tell me the difference between the two plates.

Deal is, the truck doesn't have a flexplate in it right now so i can't take the old one in to match them up.

The two PN's i keep getting are FRA206 (Ford # C5TZ 6375 T) and FRA210 (Ford # D5TZ 6375 A). Both of them have 164 teeth, 12 pitch, 0 oz. balance, and a 14.23" diameter.

If anyone knows which one i need I would really appreciate it!

Justin
 
Reply
Old Nov 22, 2006 | 09:12 AM
  #2  
1975Ford's Avatar
1975Ford
Postmaster
Joined: Jul 2005
Posts: 3,248
Likes: 0
It would seem the difference of each flywheel, is each would mount to a different transmission (torque converter).
One is made during 1965 and the other is made for a 1975.
 
Reply
Old Nov 22, 2006 | 12:36 PM
  #3  
samickguy15's Avatar
samickguy15
Senior User
Joined: Feb 2004
Posts: 379
Likes: 1
From: Delavan, IL
I would guess that it's a difference in bolt pattern to the torque convertor. I believe that FRA number is probably from Pioneer Products. I'll try to check my book when I get home.
 
Reply
Old Nov 22, 2006 | 04:06 PM
  #4  
hoxiii's Avatar
hoxiii
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
Well, the only two automatics available in trucks in 79 were the C4 and C6, right? If so, is there a different stud pattern on a C4 converter as compared to a C6 converter?

Justin
 
Reply
Old Nov 22, 2006 | 06:24 PM
  #5  
MacFastStang's Avatar
MacFastStang
Freshman User
Joined: Sep 2006
Posts: 49
Likes: 0
Was the 300 6 even around in 1965?
 
Reply
Old Nov 23, 2006 | 05:34 AM
  #6  
lucky no. 7's Avatar
lucky no. 7
Senior User
Joined: Feb 2004
Posts: 295
Likes: 0
From: conway arkansas
well far as my experiences go there is two different flywheels made for use on a c-4, one is for the small bellhousing having 157 teeth on it, the other is 164 tooth, the difference is also shown on the convertor bolt pattern, the smaller is 10-1/2" the other is the same as a c-6 11-7/16" as far as i know thats teh only difference in the two, but you say the pn's they give you both are 164 tooth, thats kinda strange, also you gottta watch out for the goddang balance, whether its a 28 oz or the 50,
 
Reply
Old Nov 23, 2006 | 11:00 AM
  #7  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Rockauto says there is only one.

ATP Part # Z134
{AT-Flywheels / OE# D5TZ6375A}

http://www.rockauto.com/catalog/x,ca...,parttype,8608
 

Last edited by Mil1ion; Nov 23, 2006 at 11:05 AM.
Reply
Old Nov 23, 2006 | 09:16 PM
  #8  
One bad 79HD's Avatar
One bad 79HD
New User
Joined: Nov 2006
Posts: 6
Likes: 0
T/C bolt pattern is the only dfference. and to make it even better the c4 had two and the c6 was different. (good luck) been there with my 77 bronco , ( which is a bronco specific flexplate) there were also ring gear changes but you covered that.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Nov 24, 2006 | 01:24 AM
  #9  
hoxiii's Avatar
hoxiii
Thread Starter
|
Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
the 240/300 came out in 1965, all trucks use the 164 tooth flexplate, the 300 uses a Zero balance plate.

So basically i need to measure my TC bolt pattern and then go in and see which one has the larger (C6 size) pattern.

Justin
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
el-blanco
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
15
Oct 11, 2017 04:51 PM
TexasGuy001
1987 - 1996 F150 & Larger F-Series Trucks
21
Jan 17, 2016 11:25 PM
hillcountryflt
1967 - 1972 F-100 & Larger F-Series Trucks
22
May 14, 2015 08:12 AM
hornsurgeon
1997 - 2003 F150
8
Jul 9, 2010 12:07 AM




All times are GMT -5. The time now is 01:43 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE