Ford truck rear axle wanted.

[Pete B]

Anybody out there got a rear axle from a 1967 to 1972 ford 3/4 ton or 1 ton truck going spare, if not any ideas where I might find one this side of the pond.
Cheers.

[MartinD]

Pete B said:

Anybody out there got a rear axle from a 1967 to 1972 ford 3/4 ton or 1 ton truck going spare, if not any ideas where I might find one this side of the pond.
Cheers.

What do you actually need , just diff or half shaft of complete axle ? as I guess it would be a 9" axle with plenty of interchange parts wise between any 9" car or truck from 1958 & on.

[Pete B]

The diff would probably do, however I'll take the complete axle for a possible straight swap over.
I'm wanting to up he gearing on my 49 F2, which has stock 226ci & 4 spd crash box, but want to keep my 8 lug wheels.

[MartinD]

Pete B said:

The diff would probably do, however I'll take the complete axle for a possible straight swap over.
I'm wanting to up he gearing on my 49 F2, which has stock 226ci & 4 spd crash box, but want to keep my 8 lug wheels.

If it is a 9" its easy to just swap the diff over (you keep your half shafts with the 8 lug). What gears are in it & what do you want to change them to ?

[Pete B]

Gonna have to split the axle to take a look.

[MartinD]

Pete B said:

Gonna have to split the axle to take a look.

No, just jack up one rear wheel & count the number of times the propshaft turns for one turn of the jacked up rear wheel.
e.g.3 1/2 of prop to 1 wheel = 3.50 gears.

[Pete B]

Cheers Martin I'll try that this weekend.

[Pete B]

Did as you mentioned Martin & the propshaft turned just short of 2 1/2 times to 1 turn of the wheel. Which surprised me, I was expecting the gearing to be in the high 4's.

[MartinD]

Pete B said:

Did as you mentioned Martin & the propshaft turned just short of 2 1/2 times to 1 turn of the wheel. Which surprised me, I was expecting the gearing to be in the high 4's.

Errr yes , well , sorry I forgot that when one of the rear wheels is stationary you have to double the count, so your expectation of high 4's would be correct . 4.9 would sound right.
So what gearing are you after ?

[Pete B]

That's more like it, I thought I was doing something wrong!
I guess I've got the original set up which is 4.88, I'd like to get to low 4's/high 3's, I've read that you can go as low as the 3.54 & still keep the 8 lug wheels, providing the old 6-banger has the guts for it.

[Pete B]

So Martin, can you help out?