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Diffs
Posted: Fri Feb 18, 2011 8:22 am
by Charlie Mallock
We run Minor 1000 diffs with our BMC axles with 180hp. But when modifying the diff to go into a Ford axle the support ears on the end of the bearing caps dont touch anything. Which theoreicly allows the casing to expand is this a known to be a problem?
Ie how inportant is it to locate the caps, They are not located on a standard Ford diff.
Would appreciate any input.
Re: Diffs
Posted: Fri Feb 18, 2011 11:13 am
by bmcecosse
Welcome to the forum! Mallock - a famous name - any connection??
Had no idea the BMC diff would go in a Ford axle. Are the Ford diffs weaker ? But I wouldn't think it matters if there is any 'support' - I don't think they touch in the BMC axle. I assume you use Ford half shafts ? Do they fit the BMC diff - or do you fit Ford parts into the diff to take the Ford shafts.
Re: Diffs
Posted: Wed Mar 16, 2011 9:51 pm
by carlt
Very interesting -
I thought Mallocks ran Ford diffs in BMC casings , with the BMC CWP fitted to the ford diff
Had no idea that they put BMC diffs in Ford Axles - WHY ?
Re: Diffs
Posted: Fri Mar 18, 2011 11:24 am
by MartinB
I agree entirely Carl, I am certain I have seen a Mallock at a hillclimb with a Ford diff in the BMC axle casing, I thought they used A35 axle tube one side and Minor the other to get the diff offset? The ford diff needed a spacer between the diff housing and the axle housing to get the crown wheel centre right for the axle casing. I thought the lower powered Mallocks ran BMC diffs with the higher powered (BDGs) running ford?
Re: Diffs
Posted: Fri Mar 18, 2011 4:16 pm
by bmcecosse
Certainly early Mallocks had that offset diff as mentioned........ And if a Ford diff was used - was it fitted with BMC output gears to take the BMC splined half shafts ?
Re: Diffs
Posted: Fri Mar 18, 2011 4:48 pm
by MartinB
When using the ford diffs, I think they generally had specially made half shafts to match the diff rather than try to keep the BMC shafts.
Re: Diffs
Posted: Sat Mar 19, 2011 7:05 am
by RobThomas
The plans in a magazine I had years ago used the Ford guts plus the Morris crownwheel, pinion and casing with a spacer and a redrilled bolt spacing on the crownwheel. The halfshafts then have the ford end removed and the Morris drive flange sleeved onto the shaft and gas welded on.
Sorry Charlie but I don't have any useful info for you. There was nothing in the article to help.