Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1961 - 1966 F-100 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-25-2004, 07:26 PM
scmagner scmagner is offline
Freshman User
 
Join Date: Jul 2004
Posts: 28
scmagner is starting off with a positive reputation.
Unhappy 65 F250 conversion to disc brakes

So I read every single tech article on the web about this brake swap and talk to every ford person I know and decide that this is a doable albeit trying swap that will make my truck safer and easier to work on. (Once the swap is done and all I have to do is replace pads and turn rotors as needed). First problem king pins in a 65 f250 are more like tooth pics compared to 79 f250.(King pins almost fell out of both spindles just a regular hammer and good drift this was way over-hyped if any maintence has been done on either truck) Big problem spindles will not work. The spindle swap is out so now i have to change whole front end suspension. Next problem about an inch too long (a problem I would like to have) with 1/2 inch longer in the I beam and 1/2 inch in the rotor assembly. Can I drill another hole in the bracket that the I beam sits in move it back 1 inch? I have read that almost everyone has this same problem with the swap (which is why I wanted to swap the spindles only). May be the bracket off of a 79 will work or is the frame 1 inch wider in a 79. Any help from someone that has been through this would be great.
Reply With Quote
  #2  
Old 07-25-2004, 08:08 PM
hawkrod hawkrod is offline
Elder User
 
Join Date: Apr 2002
Location: Apple Valley CA USA
Posts: 868
hawkrod is starting off with a positive reputation.
I have never had the trouble you are experiencing but i hear tell there are actually two different sets of front disc brakes for an F250 in the 70's based on axle rating. they are both 8 lug but one is based on F350 parts and the other is based on F100 parts. my bet is you have the heavier duty brakes. though i have never actually looked into this to verify it, the spindle and kingpin seem to be the difference between the two sizes of axle ratings with the smaller one having a smaller kingpin like an F100. perhaps you could spend a little time at a wrecker with a few trucks and see if you can find another set of brakes with the smaller kingpin size? hawkrod
Reply With Quote
  #3  
Old 07-25-2004, 10:01 PM
scmagner scmagner is offline
Freshman User
 
Join Date: Jul 2004
Posts: 28
scmagner is starting off with a positive reputation.
I would really rather use these heavier duty parts with the duel caliper discs because I already paid $200 dollars for them and I intend to pull a bobcat skidloader and some very heavy loads up and down hills etc. Is the inch longer going to be a problem or can I make these work with no modifications. I have read about the extra inch on many conversions so I do not think that would change even with the f100 parts.
Reply With Quote
  #4  
Old 07-25-2004, 10:04 PM
hawkrod hawkrod is offline
Elder User
 
Join Date: Apr 2002
Location: Apple Valley CA USA
Posts: 868
hawkrod is starting off with a positive reputation.
the brakes are not different from what i understand, it is the hub and spindle. they all use the big rotor and 4 piston caliper if i am not mistaken. hawkrod
Reply With Quote
  #5  
Old 07-25-2004, 10:19 PM
scmagner scmagner is offline
Freshman User
 
Join Date: Jul 2004
Posts: 28
scmagner is starting off with a positive reputation.
I measured the I beams as well as the spindle and hub assembly and have about 1/2 inch difference in both of them making up the inch longer in length. If I bolt these up will my wheels be to far out and come in contact with my fenders and if so is there any modifications I can do to make these fit. Like drilling a new hole one inch farther out to bolt up the I beams to or a wheel that will fit these brakes and make up the 1 inch difference (changing the center of the wheel in closer to rotors to clear the fender.
Reply With Quote
  #6  
Old 07-25-2004, 11:55 PM
6t6merc 6t6merc is offline
Posting Guru
 
Join Date: Apr 2001
Location: Cambodia
Posts: 1,108
6t6merc is starting off with a positive reputation.
I attempted to install rebuilt beams/spindles from a '78 F250 with the hd 1.06" kingpin. The rotor/hub unit which mates to this (larger) spindle uses larger bearings than the .875" pin F250 item. I believe these rotor/hub units are otherwise dimensionally identical, but have one other major difference - the larger uses a 9/16" wheel stud, the smaller uses a 1/2". They both (my trucks, at least) use a 2-piston caliper.
I was not aware that the disc brake axle assembly is 1/2" longer. I would like to hear more about this.
Eric
Reply With Quote
  #7  
Old 07-26-2004, 05:14 AM
oldtrapper oldtrapper is offline
Junior User
 
Join Date: Jan 2003
Location: Wellston USA
Posts: 76
oldtrapper is starting off with a positive reputation.
Hawkrod
I agree with your call on 2 different calipers. I have my dad"s 73 f250 and when picked up new pads I found out there were 3 different gvw ratings for that year and we had the 8600 gvw version and the pads were much bigger and beefier than the single piston and much more expensive. I just swapped a 79 f150 6900 gvw susension complete front end in a 66 w/no problem even though the new one is wider than the 66. I be leary of redrilling the axle holes. FWIW
OldTrapper
Reply With Quote
  #8  
Old 07-26-2004, 01:27 PM
scmagner scmagner is offline
Freshman User
 
Join Date: Jul 2004
Posts: 28
scmagner is starting off with a positive reputation.
I am going to try the swap with the beefier I beams, calipers, spindles and wheels studs since my purpose for this truck is work. I still have two questions where and how much were the rebuilt I beams or did you mean salvaged and did this make the swap easier? Also what about steering linkage did your old linkage fit the new spindle or did you upgrade a 73-79 linkage.
Reply With Quote
Old 07-26-2004, 01:27 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ready for Power Disc Swap, I Beam Question/Decision 1965GTFB 1961 - 1966 F-100 & Larger F-Series Trucks 12 07-10-2013 05:58 PM
Front brake help bigmancowboy 1948 - 1956 F1, F100 & Larger F-Series Trucks 5 08-07-2009 11:37 PM
5 to 8 lug conversion axle length 794x4390 Offroad & 4x4 5 01-08-2007 07:36 PM
Harvested disc brake items today 65F100project 1961 - 1966 F-100 & Larger F-Series Trucks 5 10-16-2006 08:29 AM
66 F250 disc swap problems fuelieF100 1961 - 1966 F-100 & Larger F-Series Trucks 9 07-08-2006 08:18 AM


Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1961 - 1966 F-100 & Larger F-Series Trucks

Tags
250, 65, brake, conversion, disc, f250, pickup, spindles, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 02:46 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup