Topic: long axle length

[coconutsteve]

I am putting together my 9 inch for my 65 mustang.  The housing is 52 1/4 inches.  I need to know what the long axle length should be.  Mine is 27 3/4 from the back of the bearing to the end of the spline.  I think it should be 27 1/4.  Any help would be appreciated.

[Soaring]

I'm not sure.  I hunted for about 30 minutes on the internet and nobody seems to have published that info.  One thing to keep in mind though, is that a 31 spline axle can be shortened and resplined, but a 28 spline axle  is tapered and cannot be shortened.   Just look at the axle housing near the end, and if it is tapered, you can't shorten that axle. 

[66GTKFB]

The first question is why? From the Ford Car Parts manual (SEC 40 Pg27) the lengths for a 1964 thru 1966 9 inch ring gear axles are shown as 26 5/64 inch and 30 1/8 inch long. No point of references are made, as in 'from where to where'. They are 28 spline.
Jim

[Soaring]

Don't you think they are talking about "from end to end"  Jim?  To the flange? 
In addition, the total length of the axle housing is supposed to be 57 1/4" ....not 52 1/4".  59 1/2 on 1967 and up through 1970. That is measured from flange to flange. 

Year & Model Axle Length Notes
1965-1966 Mustang 57.25 inches
1967-1970 Mustang 59.25 inches
1971-1973 Mustang 61.25 inches
1977-1981 Versailles 58.50 inches
1967-1973 Mustang, Torino, Ranchero, Fairlane 59.25 inches to
61.25 inches
1957-1959 Ranchero and station wagon 57.25 inches
1966-1977 Bronco 58 inches
1977-1981 Granada/Versailles 58 inches
1967-1971 Comet, Cougar, Mustang, Fairlane 59.25 inches
1971-1973 Mustang 61.25 inches
1964 Falcon 58 inches
1967 Cougar 60 inches
1967 Fairlane 63.50 inches coil springs
1972 Ford Van 3/4 ton 68 inches
1973-1986 Ford Van 3/4 ton 65.25 inches
1957-1959 Ranchero and station wagon
57.25 inches
narrowest 9" housing
1966-1977 Bronco 58 inches 5-on-5 1/2 inch diameter bolt circle
1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or
61.25 inches
1967-1971 Comets, Cougars, Fairlanes 59.25 inches
1975 Mustang II 8" 57.00 inches
1974 Maverick 8" 56.50 inches
__________________
68 Standard Cougar, 4spd
(Soon to be Dyno'ed)

65 Mustang Coupe
51 Chevy 2 Door Hardtop
01 Chevy Monte Carlo SS

[66GTKFB]

Axle length, not housing. Put your bifocals on and read the original post again.
Jim
Ok, I did. It appears to be a custom housing, so my original question remains - why?

[Soaring]

I just got new glasses a few weeks ago. Paid too much for them, but they work pretty well. I see the word "Housing" in the OP's post.  The axle and the housing are two different birds.