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

transmission problem

Thread Tools
 
Search this Thread
 
Old Apr 23, 2009 | 01:23 PM
  #1  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
transmission problem

hows it goin have 66 f250 with 300 and 4 speed manual was recently checking tranny fluid and a lot of yellow milky fluid came out? always shifted fine and no grinding was wondering if this is a problem that can be solved with just a change of oil in it or what i have no idea this is going to be my main transportation for most of the summer b/c my car is messed up so any help would be appreciated. thanks.
 
Reply
Old Apr 23, 2009 | 04:52 PM
  #2  
tbm3fan's Avatar
tbm3fan
Cargo Master
15 Year Member
Photogenic
Photoriffic
Liked
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
Almost sounds as though the original lube has been in that 4spd all these years. Nothing to lose so change it with maybe some 80-90wt gear lube put in...
 
Reply
Old Apr 23, 2009 | 04:59 PM
  #3  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
thanks for the advice gonna do it soon as i can.
actually i changed the fluid with i think 90wt like 4 years ago when i had it in auto shop so idk why it came out like that but wierder things have happened
 
Reply
Old Apr 23, 2009 | 05:55 PM
  #4  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

I believe it moisture causing it, you might check to see if all runner boots are in place.



John
 
Reply
Old Apr 23, 2009 | 06:54 PM
  #5  
stanyol69's Avatar
stanyol69
Freshman User
Joined: Oct 2007
Posts: 32
Likes: 0
I agree with jowilker when the metal is cold and then warms up it sweats.
It sweats on the inside as well and then mixes with the oil making sludge.
 
Reply
Old Apr 24, 2009 | 10:33 AM
  #6  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
ok ill try just what are runner boots? lol i know i put everything back the same my teacher showed me so idk how moisture got in there in the first place there was never any boot on the shifter so maybe thats why?
 
Reply
Old Apr 24, 2009 | 12:34 PM
  #7  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

Originally Posted by F250DUDE66
ok ill try just what are runner boots? lol i know i put everything back the same my teacher showed me so idk how moisture got in there in the first place there was never any boot on the shifter so maybe thats why?
Oops, fat finger mistake, hit the n instead of the b, should be rubber boots, and runner is a correct spelled word so spell check didn't pick it up..



John
 
Reply
Old Apr 24, 2009 | 12:44 PM
  #8  
Flyn66dtmn's Avatar
Flyn66dtmn
Elder User
Joined: May 2005
Posts: 581
Likes: 1
From: Montana
FWIW- maybe try draining a little again and putting it in a dish or can that you can put a lid on and seal. let it sit for a few days and then check to see if there is any water in it. there should not be any water in there at all. if there is no water in the settled fluid then it may be just the type of oil that you used and will be nothing to worry about. if there is water visible then you should try and figure out why and how it got in there. it would take an open hole to allow enough moisture to get in there that would turn it milky. Dutch
 
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 Apr 24, 2009 | 02:37 PM
  #9  
Blackwaterforge's Avatar
Blackwaterforge
Senior User
Joined: Feb 2005
Posts: 468
Likes: 9
From: Alabama
Your transmission has a breather on top with a small cap on it. If that cap is missing water from the road will get into your transmission. A very little water mixed with 90 weight will cause it to foam up and turn cloudy.
 
Reply
Old Apr 24, 2009 | 03:36 PM
  #10  
tooterturtle's Avatar
tooterturtle
Senior User
Joined: Mar 2009
Posts: 104
Likes: 0
From: Kirkland, WA
I agree with most all. The breather a lot of times is missing and lets road water in. Also, if it is pluged it won't let the moisture out and will cause it to sweat inside the case. Both require further inspection and a change of the gear oil.
 
Reply
Old Apr 24, 2009 | 03:47 PM
  #11  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
ok cool ill c this weekend (supposed to be 80 yay!) ill take the tunnel off and check the top of the tranny for that cap, drain and refill it. does it matter which brand or anything since its so old or just any brand just 90 wt? and when i fill it its just to the top of the check hole right? well anyways, thanks guys always appreciated.
 
Reply
Old Apr 24, 2009 | 03:50 PM
  #12  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
oh and if the breather cap is missing, (probably is) where would i aquire it?
 
Reply
Old Apr 24, 2009 | 04:34 PM
  #13  
Blackwaterforge's Avatar
Blackwaterforge
Senior User
Joined: Feb 2005
Posts: 468
Likes: 9
From: Alabama
Plugs are usually pipe thread and can be purchased from a tractor store.
 
Reply
Old Apr 24, 2009 | 05:22 PM
  #14  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

Originally Posted by F250DUDE66
does it matter which brand or anything since its so old or just any brand just 90 wt?
Any ol 90 wt gear oil will work. Your tranny was not designed to use fancy poo poo gear oil.



John
 
Reply
Old Apr 24, 2009 | 06:16 PM
  #15  
F250DUDE66's Avatar
F250DUDE66
Thread Starter
|
Freshman User
Joined: Nov 2007
Posts: 43
Likes: 0
lol k thanks guys
 
Reply



All times are GMT -5. The time now is 06:00 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