ford 9" axles

[andyclimax]

http://www.john-sleath.com

 

[Tinbasherdan]

Ashcroft Transmissions who are the go to people for Landrover gearboxes and axle diff upgrades used build an axle that is direct fit to a Landrover but had a 9" Ford diff, apparently they are almost unbreakable even in heavy offroad use. Just checked their site and it doesn't look like they do it now. May be worth a phone call

Just found a youtube link, I think they were about £8K a pair

have seen a lot of failures with ashcroft stuff, enough to keep me away from them. for the time being its about getting it running with what we have, itll be a while before the injection and turbo set up is ready to go on.

andy, its not a derv motor, its 18L petrol.

charlie broomfields sd1 is running a gm400 on the back of a meteor, and they do 1500lbft and 500 hp, thats not exploded as yet

 

[andyclimax]

aharr.
yep a 400 will do behind petrol but not a derv. sounds interesting.

 

[8ob]

Just looked up that engine A gm 400 will do it but you will be spending shed loads of £££`s on it before it will cope with that amount of torque, even a 9" ford axle may be marginal. When you spring your boss from the asylum next suggest an auto allison from a truck and narrow down a truck axle that has a diff lock, cant see much else living with the gobs of torque that thing knocks out.

Bob

 

[Stueeee]

if you are going for that kind of power and torque don't start with a bog axle. get a custom axle build

Yes to get that power/torque on the tarmac, it'll be a "Ford" 9" axle with no Ford bits in it. 35 spline shafts (production shafts were 28 or 31 spline) custom casing and centre section. Here's some of this stuff: https://www.strangeengineering.net/...components-1/complete-iron-center-sections-2/

 

[Tinbasherdan]

Just looked up that engine A gm 400 will do it but you will be spending shed loads of £££`s on it before it will cope with that amount of torque, even a 9" ford axle may be marginal. When you spring your boss from the asylum next suggest an auto allison from a truck and narrow down a truck axle that has a diff lock, cant see much else living with the gobs of torque that thing knocks out.

Bob

We’re using the reduction box from an Allison to step up the rpm, so it is reducing torque somewhat. The intention I think is to run a 9” until it decides its had enough, at which point there’s plenty out there for strengthening them up easily available

 

[fizzy]

A very good friend of mine used to run one of these in Funny Car drag racing. A Ford mercury. He had a chevvy supercharged engine in it with nitrous. I think it was about 800bhp at the rear wheels. 3 speed manual box. The axle was standard and never caused any trouble.