tranny - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-07-2003, 06:06 PM
Registered User
 
Join Date: Sep 2003
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
tranny

i have just bought a parts car for my 69 mustang and i noticed that it has an FMX transmission. the one bolted to my 351 right now is just a c4. i am wondering if it is worth it to put the fmx in it or just leav the c4. Any suggestions would be appriciated.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-08-2003, 06:00 PM
adtkart@aol.com
 
Last photo:
Join Date: Oct 2002
Location: Newport News, VA
Posts: 3,220
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That is a hard question to answer. It depends on several factors. If the C-4 is working and you are not planning on racing and also not planning on having a trans rebuilt right now, leave it in there. I would not change it just for the sake of changing it. A c-4 will hold up just fine under normal conditions. As trans go, they are relatively easy and inexpensive to rebuild, with the key word being "relatively". The FMX, in stock form is heavy, more difficult and expensive to work on. Although they can be made relatively "bullit Proof", you have to find someone that really knows them to get those results. I personally wouldn't change them unless I really needed to.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-20-2003, 10:50 AM
k2mooch's Avatar
Member
 
Last photo:
Join Date: Sep 2003
Location: Fort Mill, SC
Age: 35
Posts: 174
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
C-4

Hey, I'm a new member and this is my first post. I have some tranny issues with my '69 coupe too. Anyway, after asking a few guys in the local mustang club, they gave me some feedback on the FMX. Apparently, it stands for Ford Motor eXperimental. It is a very rare tranny that usually bolts up to the 351's. Rebuild cost and parts for this will cost you. If you can make the c-4 work, I'd say go with that one.

I have no idea about the performance issuse of either of these since I'm just learning about it myself. But c-4 may be easier on the wallet. Lemme know how it works out.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-20-2003, 03:04 PM
adtkart@aol.com
 
Last photo:
Join Date: Oct 2002
Location: Newport News, VA
Posts: 3,220
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Re: C-4

It amazes me some of the information that I read on these boards. I don't know that FMX was experimental. I have seen many of them in larger cars and trucks. Since I have probably only rebuilt maybe 50 of them, I am no expert, but believe they are very reliable if done right. The fact that you may not be able to find one of the young guys doing transmissions, that knows anything about them does not mean that they aren't any good. There were alot of older trans that were very dependable that were replaced with junk to save weight and fuel.

I will say, however, if I had a Mustang that wasn't being built with high HP, I would stay with the C4. It is better to stay original and is also simpler for someone that doesn't know what they are doing. Just have to make sure everything is spotless when working on it. Very suseptical to any type of dirt.
Quote:
Originally posted by k2mooch
Hey, I'm a new member and this is my first post. I have some tranny issues with my '69 coupe too. Anyway, after asking a few guys in the local mustang club, they gave me some feedback on the FMX. Apparently, it stands for Ford Motor eXperimental. It is a very rare tranny that usually bolts up to the 351's. Rebuild cost and parts for this will cost you. If you can make the c-4 work, I'd say go with that one.

I have no idea about the performance issuse of either of these since I'm just learning about it myself. But c-4 may be easier on the wallet. Lemme know how it works out.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 12:23 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.