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What does a Sierra LSD look like?
Northy - 17/10/04 at 01:42 PM

Hi,

Does anyone have a picture of the internals of a Sierra LSD?

Cheers

mookaloid - 17/10/04 at 02:48 PM

Hi Graham,

The Sierra V6 Haynes manual shows cross sections of both types of diff. You can identify which one you are looking at from this.

Cheers

Mark

[Edited on 17/10/04 by mookaloid]

Northy - 17/10/04 at 03:07 PM

Don't have one

Ben_Copeland - 17/10/04 at 03:56 PM

Buy a haynes manual then

Northy - 18/10/04 at 05:40 PM

Here you go. Without LSD: Rescued attachment non_lsd.jpg
Rescued attachment non_lsd.jpg

Northy - 18/10/04 at 05:42 PM

With LSD: Rescued attachment with_lsd.jpg
Rescued attachment with_lsd.jpg

Bob C - 18/10/04 at 07:04 PM

Couldn't help myself - stand by for some auto engineering porn -
bought myself an ATB to go in my sierra diff.
I've stopped calling it a locost..... Rescued attachment ATB2.jpg
Rescued attachment ATB2.jpg

Bob C - 18/10/04 at 07:05 PM

here it is from another angle Rescued attachment ATB1.jpg
Rescued attachment ATB1.jpg

mookaloid - 18/10/04 at 07:45 PM

Mmmmmmmmmmm nice one Bob

Cita - 18/10/04 at 07:50 PM

What a show off!!!!!!!

But....Hmmmmmmmmmm nice

mookaloid - 18/10/04 at 08:01 PM

If I had one of those I'd want to show it off too

carnut - 14/10/05 at 12:46 PM

How much does one of those cost?

Bob C - 14/10/05 at 03:43 PM

from memory £500 . . . ouch
Bob

Jasper - 16/10/05 at 01:18 PM

Here's a question for you - been thinking about getting one of these myself - do you just bolt the crown wheel and pinion to it and put it back in and off you go, or do you have to get it properly 'set-up' ????

Bob C - 17/10/05 at 09:15 AM

Bit more to it - the quaife won't actually go in without filing ~3mm of ally off (about 15mins work) if you use a grinder the diff's full of carborundum.... I put in new carrier bearings & seals but left the pinion setup strictly alone.
cheers
Bob

Liam - 17/10/05 at 05:13 PM

quote:
Originally posted by Jasper
Here's a question for you - been thinking about getting one of these myself - do you just bolt the crown wheel and pinion to it and put it back in and off you go, or do you have to get it properly 'set-up' ????


AFAIK, the setting up is to get the crownwheel and pinion meshing properly despite manufacturing tolerences of the diff case. Assuming the quaife diff centre is made such that the crownwheel is in the same position as before (bound to be) then your crownwheel and pinion setup will not have altered.

Liam

chriscook - 17/10/05 at 05:28 PM

My diff was made from a 3.92 open and a 3.62 lsd. The guy at work that did it for me bolted a steel bar to the back of the diff (parallel to the crownwheel) and measured ACCURATELY the distance to the back of the crownwheel. Took it apart the reassembled with the LS bit in the 3.92 case and adjusted the output bearings to put it in the same place.

The car only moved under its own steam for the first time yesterday but i didn't notice any diff noise and knowing the guy who did it for me I would have been surprised if there was.

photo in this thread..

Chris

[Edited on 17/10/05 by chriscook]

Bob C - 17/10/05 at 08:46 PM

Liam hit the nail on the head, by leaving the pinion alone I only had to adjust the clearance (backlash) which is easy with the "castlated" bearing carriers.
Bob