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Ford 9 inch or 9.5 SF???

9 inch or 9.5 SF ???

  • 9 inch

    Votes: 10 31.3%

  • 9.5 SF

    Votes: 10 31.3%

  • Nekkid with my 14 bolt.

    Votes: 12 37.5%
  • Total voters
    32
ryan22re

ryan22re

1/2 ton status
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Location
Irmo, SC
9 inch

Pros: Huge aftermarket support, non c clip axles, maybe find one with a limited slip. Availability, low cost
Cons: 5 lug, stock axles are usually 28 spline, and it's a Ford. No idea what kinds of gears would come stock for most fords. My guess would be a 3.50.

No idea on the WMS to WMS on fullsize fords, but I'd guess it's close enough.

9.5 SF

Pros: GM made, six lug possible with stock parts, 33 spline probably easy to find with 3.73's or 4.10's
Cons: c-clip axle, aftermarket support, expensive lockers??? could find one with a gov-lock. Availability?? Cost???

What would you run?
 
Overall, if you get the "good" 9" housing it is the better choice. Removeable third member, third pinion bearing (in addition to awesome gear contact and size), no need for an aftermarket cover, the list goes on. If you go the 9" route you will be in for aftermarket shafts (easy to order with the 6 or 8 lug pattern). The SF 14 bolt will be cheaper and easier but is not as good in a bunch of ways. Pretty much the only thing the SF 14 bolt has that is better is cost and it is an easier swap.

My vote goes to FF 14 bolt regardless.
 
Replace the 10 bolt rearend in my blazer. Probably with 33's or 35's. Have to downsize and build as cheap as possible.
 
38377k5 said:
Overall, if you get the "good" 9" housing it is the better choice. Removeable third member, third pinion bearing (in addition to awesome gear contact and size), no need for an aftermarket cover, the list goes on. If you go the 9" route you will be in for aftermarket shafts (easy to order with the 6 or 8 lug pattern). The SF 14 bolt will be cheaper and easier but is not as good in a bunch of ways. Pretty much the only thing the SF 14 bolt has that is better is cost and it is an easier swap.

My vote goes to FF 14 bolt regardless.
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well put! lol, this gets my vote as well.
 
If you are sticking with 33's or 35's why worry about changing at all? If you are easy on it you can make 35's survive on 1/2 tons. If you have toasted your stock axle, replace it or accept that you are abusing it worse than it can take.
 
Well, I'm dreaming right now, I have to sell my 60/14ff to pay some bills before the baby comes. The 10 bolt currenly in it has seen better days. It has 2.73's and needs pinion/carrier bearings and a yoke/u joint and probably more.

I just can't seeing spending too much money on it (the 10 bolt). Plus I'd like to add a traction device, deeper gears and have some reliability (more than what a 10 bolt can offer).

Maybe the one tons won't sell. Then there won't be a question.
 
Man, with 2.73's and in need of diff. bearings I would chuck that thing in the dumpster. I would look for pretty much any diff. I could find with the gears I wanted at the junkyard. Its up to you if the 8 lug business is worth it. The traction device thing is also up to you, practically everything you will find in a Chevy is either a gov-lok or open.

If money is the concern the 9" is probably way out of the picture IMO.
 
38377k5 said:
If money is the concern the 9" is probably way out of the picture IMO.
Click to expand...

That's why I threw in the 9.5 SF. Probably could pick one up with the gears I want, gov-lock or open.

But then again, for the same money, I could probably buy two decent ten bolts with 3.42's or 3.73's.

Decisions, decisions.
 
BTW. from what I've seen (take it with a grain of salt) on the internet, the 9 inch rearends from f100/f150's (late 70's/early 80's) are ~60-61 inches WMS to WMS. Ford vans are around 65 which would make them just right. But they may have an uncentered pinion, which would suck.

The 10 bolt or 9.5 SF is looking better and better.
 
I'd go 9.5" semi floater, if it's not a trail only rig and you don't drive like me and it's on 35's or less, you can find light duty 3/4 tons with 3.73's and gov locks for pretty cheap.

I swapped one into my '93 about 6 months before I sold it. Everything on the truck was going south so I rodded it about as hard as I could (33's, 3.73's, all pavement) for those last months and it survived. Obviously it's not off-road shock loads but I'm not easy on things no matter where they're driven.
 
ok... so you are selling your d60... which is probably an 8-lug correct??? if it is... and you want to save money go with a 14ff or even a 14sf should be fine with 35's they are pretty tough. and come in 6 or 8-lug. if your looking for a front then i would say find a 3/4 ton sub with a d44 front... they are a steal at various junkyards. and can hold up 35's... after all a lot of ppl run anywhere form 37'sx13.50 (me), 38x11, and even some 39's and basing101 runs 44's<----crazy. but they are pretty dependable. unless you dont care about your wheels. then screw what i just said. just thinkin since you probably had 8 lugs that it would be a good thing
 
ryan22re said:
That's why I threw in the 9.5 SF. Probably could pick one up with the gears I want, gov-lock or open.

But then again, for the same money, I could probably buy two decent ten bolts with 3.42's or 3.73's.

Decisions, decisions.
Click to expand...

Too bad you're not closer... I have a matched set of 1/2-ton gear with 3.42 ratio that's collecting dust in my back yard.

Why don't you sell the D60, keep the 14bff and just re-gear your front 10-bolt to match?
 
Looks like I may have the 60/14ff sold and a set of 3.42 10 bolts as part of the deal.
 
Who do you mean by Santa....?

Perhaps our little buddy from Spartanburg :D ?
 
If you look around, you can find 31 spline models. I picked mine up for $125 from a guy on PBB.....................................:D

WMS is pretty close, but the spring perches have to be cut and replaced.
 
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