ClassicCar

Hudson308 wrote:

Can anybody give me a definitive measurement of the width of a stepdown rear axle, from wheel mounting surface to wheel mounting surface? :confused:

Hi Guys.....I've been doing some checking myself, since I'm up against the same issues. My rear measures about 56.5" as close as I can "eye-ball". Although this seems really narrow for a stock width, it's really too wide if you want to put any rubber to the ground in the back. Anyway, Here's a nice table I found that may help:







I also put together this list of Ford rear end bolt patterns for 9" rear-ends (and 8")....actually, the list only includes patterns with 5 bolts (that's why you don't see a line for F-250's since they have 8 bolts (dana type, or other models with 4 or 6 bolts, etc). This may help you spot a candidate quickly while at the yard:







I've also found a couple of web sites that are really helpfull if you're searching the junk-yard for Ford rears......this one will completely de-coding your Ford axle tag.

tag codes



And this one just seems like good all around info:

Kevin's 9" page



Probably more than you asked for, but maybe someone can use the info.



I just recently bought a 9" out of a 73 ranchero. It measure something like 64".....I'm planning on narrowing it to about 52" for my Hudson!



Good luck!

Lee