Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-07-2021, 03:54 PM   #1
Rustynutz52
Member
 
Join Date: Apr 2013
Location: Lake Wylie South Carolina
Posts: 76
Default Grease fitting size for 1937 ford spindles

What is the correct size grease fitting for 1937 ford spindles.
Thanks Mike
Rustynutz52 is offline   Reply With Quote
Old 02-07-2021, 10:41 PM   #2
fordor41
Senior Member
 
fordor41's Avatar
 
Join Date: Oct 2011
Location: elmira,ny
Posts: 982
Default Re: Grease fitting size for 1937 ford spindles

I would thing 1/4-28 thread size
fordor41 is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-08-2021, 06:56 AM   #3
Mart
Senior Member
 
Mart's Avatar
 
Join Date: May 2010
Location: Solihull, England.
Posts: 7,236
Default Re: Grease fitting size for 1937 ford spindles

I can confirm 1/4 - 28 (UNF)
Mart is offline   Reply With Quote
Old 02-08-2021, 08:25 AM   #4
Kurt in NJ
Senior Member
 
Kurt in NJ's Avatar
 
Join Date: May 2010
Location: on the Littlefield
Posts: 5,490
Default Re: Grease fitting size for 1937 ford spindles

according to the parts book it is 1/8 pipe thread
Kurt in NJ is offline   Reply With Quote
Old 02-08-2021, 08:42 AM   #5
bbrocksr
Senior Member
 
Join Date: May 2010
Location: Yakima Washington
Posts: 696
Default Re: Grease fitting size for 1937 ford spindles

Quote:
Originally Posted by Kurt in NJ View Post
according to the parts book it is 1/8 pipe thread

1/4-28 I just got some for my spindles.
Bill
bbrocksr is offline   Reply With Quote
Old 02-08-2021, 08:58 AM   #6
rich b
Senior Member
 
rich b's Avatar
 
Join Date: May 2010
Location: Minnesota
Posts: 1,347
Default Re: Grease fitting size for 1937 ford spindles

Sponsored Links (Register now to hide all advertisements)
Here's a picture of some round-back spindles I had where you can see they are 1/4-28.
Attached Images
File Type: jpg roundback spindles (Medium).jpg (54.9 KB, 41 views)
rich b is offline   Reply With Quote
Old 02-08-2021, 09:20 AM   #7
DavidG
Senior Member
 
DavidG's Avatar
 
Join Date: May 2010
Posts: 7,587
Default Re: Grease fitting size for 1937 ford spindles

Kurt is correct, they are pipe threads, not 1/4-28 keeping in mind that the fitting has seal against leakage. They are so close to one another that it is easy to mistake one for the other.
DavidG is online now   Reply With Quote
Old 02-08-2021, 09:41 AM   #8
35fordtn
Senior Member
 
35fordtn's Avatar
 
Join Date: Aug 2010
Location: McMinnville, TN
Posts: 2,045
Default Re: Grease fitting size for 1937 ford spindles

they are Ford #353043-S7 which is 1/4-28 1/2" tall according to the Green Book, but in the 1928-38 catalog it lists 1/8" npt for 37-38 and 1/4-28 for 34-36

As David Says, they are close as 1/8" NPT is 1/4-27 so you can actually managae to install the wrong one and it'll still somewhat work
35fordtn is offline   Reply With Quote
Old 02-08-2021, 03:24 PM   #9
bbrocksr
Senior Member
 
Join Date: May 2010
Location: Yakima Washington
Posts: 696
Default Re: Grease fitting size for 1937 ford spindles

Quote:
Originally Posted by DavidG View Post
Kurt is correct, they are pipe threads, not 1/4-28 keeping in mind that the fitting has seal against leakage. They are so close to one another that it is easy to mistake one for the other.
I,m going to have to disagree with you 1/4-28 is .250 in diameter, 1/8 pipe is close to .400 in diameter. They are nowhere close.
1/8 pipe and 3/8-24 are the one that are close.
I just finished putting kingpins in a pair of 37 spindles and they are 1/4-28.
I have 3 more sets and they are 1/4-28.
Compare a 1/8 pipe fitting and a 1/4 bolt to see the difference.

Bill
bbrocksr is offline   Reply With Quote
Old 02-08-2021, 03:33 PM   #10
bbrocksr
Senior Member
 
Join Date: May 2010
Location: Yakima Washington
Posts: 696
Default Re: Grease fitting size for 1937 ford spindles

Quote:
Originally Posted by 35fordtn View Post
they are Ford #353043-S7 which is 1/4-28 1/2" tall according to the Green Book, but in the 1928-38 catalog it lists 1/8" npt for 37-38 and 1/4-28 for 34-36

As David Says, they are close as 1/8" NPT is 1/4-27 so you can actually managae to install the wrong one and it'll still somewhat work
1/8 pipe is not 1/4-27, it is about .400-27 which is .150 larger than 1/4".
Bill
bbrocksr is offline   Reply With Quote
Old 02-08-2021, 03:35 PM   #11
Mart
Senior Member
 
Mart's Avatar
 
Join Date: May 2010
Location: Solihull, England.
Posts: 7,236
Default Re: Grease fitting size for 1937 ford spindles

I know my 32 spindles are 1/8 pipe but my 39s are 1/4-28. So at some point in between Ford made the change.
Mart is offline   Reply With Quote
Old 02-08-2021, 04:26 PM   #12
35fordtn
Senior Member
 
35fordtn's Avatar
 
Join Date: Aug 2010
Location: McMinnville, TN
Posts: 2,045
Default Re: Grease fitting size for 1937 ford spindles

Quote:
Originally Posted by bbrocksr View Post
1/8 pipe is not 1/4-27, it is about .400-27 which is .150 larger than 1/4".
Bill
You are correct..Sorry... However in the Ford 28-38 catalog it does state 1/8" pipe for 1932-34 and 1937-38
35fordtn is offline   Reply With Quote
Old 02-08-2021, 04:53 PM   #13
Brian
Senior Member
 
Brian's Avatar
 
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,004
Default Re: Grease fitting size for 1937 ford spindles

I know my 32 spindles are 1/8 pipe but my 39s are 1/4-28. So at some point in between Ford made the change

35 Fords have 1/4 28 NF grease nipples, so change must have occurred then
__________________
Unfortunately, two half wits don't make a whole wit!
Brian is offline   Reply With Quote
Old 02-08-2021, 06:02 PM   #14
Jim in Wisconsin
Senior Member
 
Join Date: Jan 2012
Posts: 247
Default Re: Grease fitting size for 1937 ford spindles

As far a a grease fitting sealing because of a taper, the 1/4-28 fitting are tapered, even though the threaded hole is not. If you look close at a 14/-28 grease fitting you can see the slight taper. They are supposed to tighten at the last thread and seal, at least seal enough so that grease doesn't squirt out.
The 1/8 pipe ones are also tapered, just like a pipe fitting would be. As others have said 1/8 pipe is much bigger than 1/4 inch.
Jim in Wisconsin is offline   Reply With Quote
Old 02-08-2021, 07:20 PM   #15
DavidG
Senior Member
 
DavidG's Avatar
 
Join Date: May 2010
Posts: 7,587
Default Re: Grease fitting size for 1937 ford spindles

My bad, I guess I was thinking of the '32-'34 fittings which are 1/8" pipe threads.
DavidG is online now   Reply With Quote
Old 02-08-2021, 07:29 PM   #16
Rustynutz52
Member
 
Join Date: Apr 2013
Location: Lake Wylie South Carolina
Posts: 76
Default Re: Grease fitting size for 1937 ford spindles

Oh lord, it sounds like I need to buy both!!! I should have pulled them out before I had the axle cleaned up and painted. As always thanks, this site is awesome!!
Rustynutz52 is offline   Reply With Quote
Old 02-09-2021, 10:04 AM   #17
Don Rogers
Senior Member
 
Don Rogers's Avatar
 
Join Date: May 2010
Location: Wildwood, MO. (near St. Louis)
Posts: 1,595
Default Re: Grease fitting size for 1937 ford spindles

I looked thru all my individual chassis parts catalogues to clarify the issue. They didn't. The 1/8" pipe grease fitting is listed as 353027-S7 and then its called 353047-AS7 and eventually 353043-S7. But it is eventually listed as being used for 33-34, 37, 38-48.

The 353034-S7 1/4" x 28 grease fitting seems to have been used on some 34 spindles and on all 35-36 spindles.

God Bless Henry and his Merry Men!!!
Don Rogers is offline   Reply With Quote
Old 02-09-2021, 10:49 AM   #18
Kube
Senior Member
 
Kube's Avatar
 
Join Date: May 2010
Location: Wisconsin, USA
Posts: 6,925
Default Re: Grease fitting size for 1937 ford spindles

I have found nothing but 1/8" NPT on each and every 39-40 spindle I have ever worked with.
__________________
"I can explain it for you. However, I can't understand it for you".
Kube is offline   Reply With Quote
Old 02-09-2021, 04:33 PM   #19
bbrocksr
Senior Member
 
Join Date: May 2010
Location: Yakima Washington
Posts: 696
Default Re: Grease fitting size for 1937 ford spindles

Quote:
Originally Posted by Kube View Post
I have found nothing but 1/8" NPT on each and every 39-40 spindle I have ever worked with.



Kube, I've got 2 sets in front of me and 1 set I just installed on the axle, all 37-41 round back spindles. All have 1/4-28 threads I just put the grease fittings in last night 1/4-28 stainless fittings.

Bill
bbrocksr is offline   Reply With Quote
Old 02-09-2021, 05:47 PM   #20
JSeery
Senior Member
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 15,885
Default Re: Grease fitting size for 1937 ford spindles

1/8-27 NPTF specs, thread dia is listed as .390
Attached Images
File Type: jpg TDL-H1609.jpg (40.3 KB, 4 views)
File Type: jpg Zerk specs.JPG (21.5 KB, 8 views)
JSeery is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 03:42 PM.