ok here goes hope this make sence
on my car from mnr i have a (open)non-lsd fitted it has drive shafts that bolt onto the diff with allen keys,as it does to the hub end.
will a lsd fit straight in or not as im told they are bolt on is this correct

Should do.

Yes.
As long as both diffs are 7" which they probably are.

cheers guys

whooooaaaaaa fella....
your sierra bolt- on flanges are held in place by circlips which are accessed through the middle of the diff.
On every LSD I've seen this area is inaccessible. So you can't clip your shafts in. So they'll slop about - oil will leak & horrendous mechanical havoc will result (!)
On my quaife I got some special clips from classic conversions & turned up the circlip grooves to match so the shafts slid in then got themselves stuck in place.
The other shaft types are spring loaded to hold them in.
cheers
Bob

Ay up Bob - I *think* you may have the wrong end of the stick mate...

I think Rizla is asking if the standard Ford LSD from a 4x4 etc will fit as a direct replacement for the open diff he has fitted at present in his car.

At least that is how I read it...

Rizla, (if I have read it correctly), the standard Sierra 4x4 LSD has bolt on shafts too. Should be a straight swap.

HTH Stu.

Not sure what you mean Bob, the circlips are accesible on my 3.62 4x4 LSD. Do you mean drive flanges from a non LSD diff wont fit in an LSD. Maybe i'm just confused
it dont take much.

Al.




On every LSD I've seen this area is inaccessible. So you can't clip your shafts in. So they'll slop about - oil will leak & horrendous mechanical havoc will result (!)
On my quaife I got some special clips from classic conversions & turned up the circlip grooves to match so the shafts slid in then got themselves stuck in place.
The other shaft types are spring loaded to hold them in.
cheers
Bob

thanx stu,yep you read it right,so it should just be a direct replace job

Fair enough guys! I've only seen the quaife recently (where there is NO chance of fitting the ford retaining circlips) in the ford & viscous & torsen mx5 ones - these all would have made circlip access impossible. Apologies for spreading alarm & despondency to all concerned!
cheers
Bob

I think you'll find the bolts are torx head not allen heads
tony
difference is it hurts when the allen key rounds itself off and slips

quote:

---

Originally posted by mad-butcher
I think you'll find the bolts are torx head not allen heads
tony
difference is it hurts when the allen key rounds itself off and slips

---

That's why it's easier to cut the heads off with a grinder and take what's left out with a mole grip when they are apart. You can replace them with anything with the right thread then.

you could do that pete,or give the bolts a hefty whack from side to side a few times before trying to undo them,this normally works ,or if youv rounded the heads off thrash a bigger torx into it,,its ok grinding them off but you have to be carefull not to make a hole in the casing,,,just saying thats all