Thread: question about 9" ford rear

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I have a 9" ford rear in my 57 chev. I was told this was a tough rear end.
Can some one tell me what makes this ford rear so tough. I know its tough
because it handles 800 hp pretty good. rd

Because ford built it tough, it has a pinion bearing set on the nose of the pinion gear. Also you get nodular cases for them as well, nodular pinion support, and posi and locker diffs, then there is all the aftermarket stuff as well.

As Southerner said the location of the pinion brgs makes the differance. Ford the pinion gear has the brgs on either side of the gear. GM has both brgs ahead of the gear.

Also, not all 9 inch Ford rears are created equal. Some are tougher than others, and the case design will tell you which model you have. Used to be that an N cast into the case was the good one (nodular) but I haven't kept up with recent developments, so there are probably better units now.


Don

LQQKs somethin' like this. There's NO ford parts in this picture, but you get the picture.

i have put some good power thru the stock stuff first thing i do is loose the crush sleeve and set it up with a shim pack . the war case look like ford N case with out the N on them they are not hot for any power .i like the HRW case iron and use the daytona pinion support alum or iron set many of them up they are tough but take a bit more power to run than a 12 bolt

I agree they take a little more power through friction loss, but that s better than having the gears fall out

that is a bad thing when your rear end go,s to hell

very, you go to Nowheresville in a hurry

And just in case you want some really in depth info on this fine rear end, you can go to www.kevinstang.com/Ninecase.htm


Don

10 Bolt Pinion Support w/ARP Stud Kit
1350 Yoke
40 Spline spool
Aluminum Case
Giant Timkin Pinion Bearings
Extra wide Caps
4:11 Pro Gear

Bullitproof

I'm hopin' so.

them war cases have fooled more then one guy.

i ilke to show off my rear ends but there are in the cars .them alum are nice to lift .i have set up one and have set up the MW big roller ball bearing pinion supports they are abit tricky to work on. the iron HRW case,s have the big caps and 5/8 cap bolts they are nice and can take much HP but very heavy