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4 stud ford diffs


wickmyster

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I am now running a slightly worked Pinto and my diff is already noised and whines.. Would like something stronger so I can tow, my escort van has extra leaves and harder shock, it is a real work horse! I have broken a 3.7 already...so need something stronger and dont want to shorten one of my falcon diffs just yet...that is a last resort! would love a bay atlas, but they are going for mega bucks!

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Goto 195/45/15's

Cortina mk3+ are slightly wider and stronger.

You wont break a diff when towing so size/strenght of diff is irrelevant.. oh unless your doing burnout towing of course. :badgrin: If being sensible then a standard escort diff is fine for even a pretty worked pinto.

Gaz

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As I remember MK1 Capri will fit but its a little bit wider. You can get LSD centers for them but they are expensive.

You could add an LSD to your Escort/English. They are pretty strong.

http://www.palmside.co.nz/product_cid_10821.html

Otherwise its shorten a Hilux (but I'm not sure the ratios you are after are available) Borg Warner or 8 inch ford.

Look in the tech section there is a post about early Hilux in an Escort.

Failing that look out for something somone else has built for sale on trade me.

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Yeah 2.92 will suck. My 265 Val was 2.92 with 5 speed, and 15s. it didn't work well.

VL commodore used a 3.45 75 series Borgwarner, you can use that crownwheel and pinion on Falcon/Valiant LSD centers for 75/74 series Borg warner.

AU Falcon XR6 has 3.45 ratio but it is 78 series. They are a big diff with 28 spline 9inch axle splines and 4 spider LSD.

You can pick them up cheapish from wreckers but there is a bit of work involved in shortening them and converting to 4 stud.

I am building one at the moment.

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How many k's had your old diff done? you could always rebuild it with new bearings and a non collapsable spacer, making sure to set all the preloads properly. The diff you blew was probably 30+ years old with a million miles under its belt, if so its no suprise it started whining. If you are on a budget I'd say novelty of throwing burnouts everywhere will wear off rapidly anyway, I know guys racing escorts with standard diffs in them, granted they do eventually start whining but a diff is an easier swap than a gearbox.

How wide are escort diffs? I can measure a mk 1 capri's length if you want?

I'd heard the 3.5 gt capri and sport diffs had better bearings in them as well? can anyone confirm this?

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