Tow capacity for 1967 Ford F100

[blackeagle603]

no there rears aren't the same. The 9" reference is to the size of the third member. That F100 prolly came with a lighter weight Spicer rear end or perhaps an 8". The 9" is the holy grail of Ford rear ends. They've gotten spendy since all the hot rodders want them. The 31 spline is harder to find and was costly. The 9" with 28 spline axles is plenty if you ever upgrade.

[TheIrishman]

no there rears aren't the same. The 9" reference is to the size of the third member. That F100 prolly came with a lighter weight Spicer rear end or perhaps an 8".

Sorry for the confusion, Ford rears a identified by the diameter of their ring gear-7.5" 8" 8.8" 9". I have never seen a Spicer(Dana) rear in an F100 or 150 and believe they stopped using the 8" in trucks by 1970. If it had a straight six from the factory it might have the 8" but if it's a factory v8 it most likely is the 9".
If it is a ford 9" then larger drums and hardware from a newer Ford truck ,or millions of aftermarket break assemblies, are straight bolt on(assuming the drums have the same lug pattern as the axle shafts.

The 9" is the holy grail of Ford rear ends. They've gotten spendy since all the hot rodders want them. The 31 spline is harder to find and was costly. The 9" with 28 spline axles is plenty if you ever upgrade.

9" rears are now much easier to find as lots of '80s 150s hit the boneyards. Not to mention you can now buy housings from company's such as Currie to fit anything from toyota pick ups to Chevy impalas. And yes the 28 spline are fine for anything the engine has the power to do. Spline count makes more of a difference when moving to larger tires or serious abuse. The 8.8 in my mustang never broke or stripped a shaft even with street slicks and 400 horse under the hood(factory 28 spline).

ETA

And if I upgrade the front I should find out if it is ball joint or spindle?

The difference is ball joints or king pins. Ball joints are as the name infers, a joint(two actually-one top one bottom) used to locate the spindle onto the I beam. A king pin Is a Giant pin(not as big on a 100 as say my western star but still large) that allows the spindle to steer on the I beam.

[blackeagle603]

I have never seen a Spicer(Dana) rear in an F100 or 150 and believe they stopped using the 8" in trucks by 1970.

I swapped a Spicer out of a '71 and installed a 9".

[TheIrishman]

I swapped a Spicer out of a '71 and installed a 9".

I don't doubt there were some oddball drivetrains. There were spicers in the '50s fords(either 41 or 44) and the 44 would actually be stronger than the 8" .

[blackeagle603]

Yep, it was a 44. We were young, stupid and pouring bucks into hot rodding a 300 straight 6.

We were a bit geekish and getting bored with the standard hot rod fare -- drifting off into aircooled VW's and this project for to be different and have to a bit more original thinking. Had access to buddies dad's wrecking yard. So rearends, trannies and the like came cheap or free.

For the record the old Ford 300 is a suh-weet engine. A bit of classic, understated American reliability and value engineering. Still one of my favorites. If CC's truck had one instead of that 352 I might not have been able to avert my eyes (and wallet).

[NVGdude]

For the record the old Ford 300 is a suh-weet engine. A bit of classic, understated American reliability and value engineering. Still one of my favorites.

My 1995 F-250 has a 300 I-6 in it. (Last year maybe?) Those suckers would last forever. That and the stick were the reasons I bought it.

As for the 67 F-100, back when I drove a '69, it had a 9" rear end, same as my Mustang. 360 in it rather than the 352, but I pretty much never worried much about towing another car or truck with it. Braking can be a bit "sporty" if you are not used to pulling a trailer though, and 4 wheel drums will start to fade if they heat up.

Is the 67 a stick or auto-magic? If a stick is 1st a granny or standard gearing? (if it's a granny Ford set it up to tow)

[Rod]

It's an automatic. I've had fun working on it, just finished putting in the donut between the manifold and the exhaust. The old one was rusted out completely so it sounded like I was firing a cannon during deceleration. I also found the muffler split end to end. CC, was the guy you bought it from named Bubba by any chance?

[TheIrishman]

just finished putting in the donut between the manifold and the exhaust. The old one was rusted out completely so it sounded like I was firing a cannon during deceleration. I also found the muffler split end to end.

The exhaust leak at the manifold likely caused the muffler to split. When you decelerate cold air gets sucked into the exhaust from the gap mixing with the hot exhaust causing that loud backfire sound. It's also not good for your exhaust valves.

[Combat Controller]

Doh!

[NVGdude]

It's an automatic. I've had fun working on it, just finished putting in the donut between the manifold and the exhaust. The old one was rusted out completely so it sounded like I was firing a cannon during deceleration. I also found the muffler split end to end. CC, was the guy you bought it from named Bubba by any chance?

Now I know exactly what truck we are talking about. I considered buying it but the automatic threw me off. (I don't do automatics unless strictly necessary)

The famous Ford donut, man I hate those things, and yeah, the exhaust leak could have caused the muffler to ka'boom, especially if it's running rich, cold 02 rich air gets into the exhaust system and if you have a backfire it can basically detonate, kind of like your own personal fuel-air explosion in your muffler. Had that happen with my '69, but it broke the fore/aft wleds instead of the body.