9" question

[Tim...Ok]

I may have found a craigslist score on a 9" rearend..the guy says it's a coil spring,so I'm thinkin it came out of a big car..does anybody know if they made coil spring rearends in the large and small ford bolt (lug)patterns..I was after a truck rearend cause I want the big pattern, but if this is big pattern, I don't care what it came out of..

thanks,
Tim

 

[rainman]

Mid to late 70's Torino, T-birds, mid size cars all had 9" in them. Don't think any 9" that wasn't in a truck had the large pattern. I could be wrong, but I don't think I am.

 

[izzy]

got my ford 9 out of a mid 70 lincoln with the big 5for $100.

 

[fuzz]

Only the truck rears had the 5 on 5-1/2 bolt pattern. The BIG car, coil spring rears had 5 on 5.

 

[rainman]

Wasn't even thinking about the lincoln's!!

 

[Blue Eyed Devil]

Check the axle flanges. Some of the 4.5 and 5" bolt pattern axles still had large flanges so they can be drilled for 5.5". Otherwise you are stuck with the smaller pattern or buying new axles.

Measure carefully. Small car (4.5) is easy to spot, but the big car (5") can sometimes fool you for truck pattern at a glance....

 

[hotrod preacher]

both car patterns are possible with coils...not the truck pattern....
"regular car" pattern 5 on 4 1/2"
"big car" pattern 5 on 5 (same as chev truck)

truck 5 on 5.5 as mentioned earlier...

 

[ruggs]

If your interested I have the Cad measurements for you to re-drill to any pattern that you want. ......ruggles

 

[rainman]

I think the question is, what exactly are you looking to do? Why do you want a specific bolt pattern?

 

[Tim...Ok]

I think the question is, what exactly are you looking to do? Why do you want a specific bolt pattern?

because my front axle is out of a 56 ford f100 and i already have wheels for the rearend ..plus I'd just like for them to be the same,front to back..

thanks for the answers everyone, that helps alot..the rearend turned out to be small pattern so I'm going to pass on it..

 

[HOT40ROD]

If you are looking for a 5 on 5 1/2 bolt pattern 9 inch the early Broncos are 58 inches hub to hub. 57 - 72 Ford pickup are 61 1/4 inches and 73 - 86 Ford pickup are 65 1/4 inches hub to hub.

This may help you depend on what you are building.

 

[TiredIronGRB]

Dana 44s from Scouts have the 5 on 5.5 pattern and are 58" wide.

 

[Torch]

dana 44 looks small but is an 8.5" ring gear like 10 bolt chevy but is rumored to be nearly as strong as a 12 bolt chevy... being a dana...
and posi's and lockers for dana 44's are cheap on eabay.
I had one in a 63 gmc with the big v6 and a 4 speed. I beat on it and never blew it. I think ford ran the dana 44 in their f100 before the 9" came out so maybe that's what you already have?
There's a company making affordable 27 and 31 spline axles for the 9" cut to length so you don't have to buy them custom fit axles or get your shortened. they have rolled splines which are stronger than cut splines.

if you changed your axles you'd just run the truck drums with the car backing plates but you'd have to have backing plates from a car with the full sized truck brakes.

You can also put a parking brake on the pinion support of the 9" and run cheap disc brakes using front gm calipers and f250 4x4 rotors on custom brackets or using the gm rear parking brake calipers.
that's the cheap way, there are other options.
I had the 4 wheel discs on my transam and never had a problem with the parkign brake calipers. I also ran silicon brake fluid and they never rusted inside.