28 spline or 31 spline?
Thread Starter
|
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
28 spline or 31 spline?
I was wondering if anyone knows what kind of axles I have in my rear end. I have a 1970 F-100 with a 360. Also does anyone know where I can find some stock or better replacement axles just in case mine are too worn to reinstall when I do my gear change.
Fleet Mechanic
Joined: Jul 1999
Posts: 1,360
Likes: 1
From: Iowa
28 spline or 31 spline?
Well, if your '70 F100 360 is anything like my '70 F100 390(360 originally), it's got 28 spline axles. However, the only way to be sure of that is to pull one. I really doubt that your's are worn beyond reuse-they're a part that doesn't wear much. But I hear Moser axles are pretty good, but high dollar.
Jason Kendrick
1970 F100 Custom 390/C6
1978 F150 Ranger Lariat Supercab 460/C6
Jason Kendrick
1970 F100 Custom 390/C6
1978 F150 Ranger Lariat Supercab 460/C6
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
28 spline or 31 spline?
I agree with Jason, the only way to be sure is to pull and count, and the likelyhood that it beyond replacing in very low.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NC Truck Owners] NC Ford Truck owners group
66F100s Rule
In the cool still quiet of night you can hear chevies rusting away.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NC Truck Owners] NC Ford Truck owners group
66F100s Rule
In the cool still quiet of night you can hear chevies rusting away.
Thread Starter
|
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
28 spline or 31 spline?
That's cool. I know an 8.8" is a different animal but after 150,000 miles on my dads 88 F-150 there were nasty grooves worn into both of his axles. Fluid level was checked often but never changed.
Elder User
Joined: Aug 1999
Posts: 910
Likes: 0
28 spline or 31 spline?
I've got two 1/2 tons that have 28 spline... I also got a rear out of a 1/2 ton that was 31 spline. If you have the tin tag, I've had wrecking yard ppl check their computer or reference books on the code. Or if your pullin the axle... count 'em that way. Part of the Letters on the tin axle code tag indicate the spline type.
BBT
BBT
Fleet Mechanic
Joined: Jul 1999
Posts: 1,360
Likes: 1
From: Iowa
28 spline or 31 spline?
Yeah, the 8.8 is a different animal. The 8.8 bearings (roller) ride directly on the axle, using the axle itself as the race. The nine incher, uses a bearing with integral race that slips over the axle. My '70 happens to use the big 3300lb ball bearing. $$$! The only ways I can think of destroying an axle in a nine incher would be gross abuse, like drag racing with serious horsepower, rock crawling with monster tires and a lot of torque, or a bearing failure which would adequatly heat the locking coller enough to expand and slide off.
Jason Kendrick
1970 F100 Custom 390/C6
1978 F150 Ranger Lariat Supercab 460/C6
Jason Kendrick
1970 F100 Custom 390/C6
1978 F150 Ranger Lariat Supercab 460/C6
Junior User
Joined: Aug 2001
Posts: 63
Likes: 0
Trending Topics
Cargo Master
Joined: Apr 2001
Posts: 2,697
Likes: 46
From: Vancouver
28 spline or 31 spline?
I talked to a Ford tech at the local dealer recently about this. He claimed that he can predict the spline count by simply looking at the contour of the axle flange. Anyone know more?
Eric
Eric
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Junior User
Joined: Jun 2001
Posts: 61
Likes: 0
28 spline or 31 spline?
Hey guys, just wanted to add my two cents... The 9" axle's are pretty hard to tear up. But I would like to know something one step further. I have a set of N.O.S. 31 spline axle's and the measurement on them are: Long side- 31 13"/16" and the short side
27 7/8" from the inside of the stud flange, to the tip of the axle. Does anyone know what vehicle these fit in? I accuired them from the local high school here in Murray county GA. They used them, as well as the rest of the rear end for training purposes in their shop calss in 1969. I didn't get the housing and I have no idea what they fit in. I've tryed to sell them, but no one know's what they would work on, so everyone is kinda gun shy to buy them. I'd like to use them in my 68'F-100, but haven't had a chance to do any measuring. Can anyone help me out here??
Thanks,
Bill
27 7/8" from the inside of the stud flange, to the tip of the axle. Does anyone know what vehicle these fit in? I accuired them from the local high school here in Murray county GA. They used them, as well as the rest of the rear end for training purposes in their shop calss in 1969. I didn't get the housing and I have no idea what they fit in. I've tryed to sell them, but no one know's what they would work on, so everyone is kinda gun shy to buy them. I'd like to use them in my 68'F-100, but haven't had a chance to do any measuring. Can anyone help me out here??
Thanks,
Bill