Ford 9 inch into 66 GP
 

Ok had it with the BOP axle for a variety of reasons.

Going with Ford 9 inch since I have a brand new 4.11 gear set. Putting it behind a 421 HO and 4 speed. WEEEEEEEE!!!!

So aside from a big pile of tires I need a case. I want to use my American Torque thrusts which of course rub the quarter panels.

Anyone find out an application to use that is about 2 inches more narrow than the GM axle?

I can use a set of brackets off a junk GM 65-65 rear if someone has them out there, or we can just make our own.

I'm sure I'm not the first guy that wants a sturdy rear that fits aftermarket wheels and big tires better.

Keith, when I considered this for my '64 Catalina(before Fabcraft started selling new posis, side gears and gearsets), Quick Engineering in Iowa could build a brand new 9" housing for around $750. The only downside was I was going to have to ship my old housing to them so they could build a jig. They (Quick Engineering) have a website.

Consider a D60, too. This will probably start a heated debate, but even though the 60 is heavier than the 9, it's stronger stock than the 9. No front bearing retainer to puke out.

I haven't looked heavily at it yet, but I think putting the BOP outers into a D60 housing is doable. You can get a Currie housing setup for whatever you want. I think they have the brackets and jigs for the '65-70 BOP axles already made up.

Of course not an off the shelf solution. Probably no help, Keith. Sorry.

What about putting an entire '64 or earlier assembly in? Those are tough as nails and narrower. I mean, it is all going to be a 'from scratch' build anyway.

I have a 4.11 hogshead from a 9 inch on the shelf. I use them in the race cars so its easy to change them around. SoI can use the 4.11 or switch to a 3.50 or 2.73 or whatever as I need.

You read my mind....I want to do this EXACT same thing to my '66 Cat.

Ive used this list for years..always been correct for me, every time

Ford
Outside
Width Year Model
56.50 1969-1977 Maverick 8"
57.00 1974-1978 Mustang II 8"
57.25 1957-1959 Ford, Ranchero, Station Wagon
57.25 1965-1966 Mustang
58.00 1966-1977 Bronco
58.00 1964-1965 Falcon
58.00 1977-1981 Granada/Versailles
58.50 1977-1981 Versailles
59.25 1967-1970 Mustang, Fairlane, Comet, Cougar
60.00 1967 Cougar
60.00 1958-1960 Edsel
61.00 1964-1971 Ford Full Size
61.00 1949-1951 Mercury
61.25 1957-1972 Ford F-100 Pickup
61.25 1960-1964 Ford Full Size
61.25 1971-1973 Mustang
61.25 1967-1973 Torino, Ranchero, Fairlane
63.00 1970-1979 Ranchero & Torino
63.00 1972-1979 Ford Full Size & Intermediate
63.50 1967 Fairlane (Coil Springs)
65.25 1973-1986 Ford F-150 Pickup
65.25 1978-1986 Bronco
65.25 1973-1986 Ford Van 3/4 Ton
68.00 1972 Ford Van 3/4 Ton
69.25 1977-1986 Ford E-150 Van
Chevy
Outside
Width Year Model
54.25 1983-2004 Chevy S10 2WD, GMC S15 2WD
57.75 1962-1964 Chevy II/Nova
57.75 1965-1967 Chevy II/Nova
58.00 1978-1988 Chevy Malibu, Monte Carlo
59.50 1968-1982 Corvette
60.00 1955-1964 Chevy Car
60.00 1967-1969 Camaro
60.25 1968-1979 Chevy II/Nova
60.50 1984-1995 Corvette
60.50 1964-1967 Chevelle
62.00 1955-1959 Chevy Pickup
62.50 1968-1972 Chevelle
62.50 1970-1981 Camaro/Firebird
Mopar
Outside
Width Year Model
55.60 1960-1976 7 1/4 A-body
55.60 1973-1976 8 1/4 A-body
55.60 1966-1972 8 3/4 A-body
55.60 All 8 3/4 A-body
56.00 1932-1934 All Mopars
57.40 1963-1972 7 1/4 A-body
58.54 All 8 1/4 F-body
58.54 All 8 1/4 M-body
58.54 All 8 1/4 J-body
59.00 1935-1936 All Mopars
59.14 1966-1970 9 3/4 B-body
59.20 1962-1970 8 3/4 B-body
60.00 1937-1948 All Mopars
60.70 All 8 3/4 E-body
60.70 All 9 3/4 E-body
62.00 All 8 1/4 B-body
62.00 1971-1974 8 3/4 B-body
62.00 All 9 1/4 B-body
63.40 All 8 1/4 C-body
63.40 1971-1974 8 3/4 B-body S.W.
63.40 All 9 1/4 C-body

heres the site link
http://www.carnut.com/specs/rear.html

That's what I thought., a 32 spline 58-64 big Pontiac rear end ( 9.3" ) when properly set up can handle up to and over 1,000hp ( that's why the early dragsters used them). Try that with a 9" Ford.
Not as strong as the 9.3 Olds/Pontiac , but stronger than the 9.0" Ford is the old 9.1" HD Nissan.

Back in the mid 60's my 59 Catalina had three posi. gear sets. 3.08 for street, 3.90 and 4.10 for racing. On a Friday afternoon after school my mom always knew when I was going street racing. I got it down to changing that street 3.08 to a 3.90 or 4.10 in about 20min. Those 9.3" pumpkins aren't exactly light either.

Yeah, especially when you are lying on your back and transferring it from the housing to your chest to slide out from under car. Ya gotta do what ya gotta do.

And, you must have had a well-educated/trained mom. Lucky indeed.

I used a floor jack for most of it, but the secret was another flexible brake hose at the T going to the rt rear brake cylinder. With a slight bend in the flex brake line to the rt. rear brake line going to the rt. rear wheel cylinder, and unbolting the "T" brake line connector it is possible to pull the axle's away and clear of the splines without disconnecting a brake lines to Lf rear & Rt. rear wheel cylinders = no brakes to bleed and 20 minutes R&R the pumkin.

Mom was great, but she was plenty used to it. My Catalina was originally my Dad's A stock Automatic we special ordered new back in 59. I got my IHRA license when I was 14 and my regular license when I was 16 in this car. It was a factory S/ O car my Dad ordered out of the zone office.

So I am about 2 1/2 Hrs. drive from Quick Engineering and I have a 65 axle housing in the shop that could be used for a jig. My son has a 65 GP and is currently looking at axle options. Hmmmmmm..