www.RX7fb.com

TOOL wrote:

Ulvegrip wrote:Yes all our S3 had LSDs I don't know the sales figures but I'll get back to you on that.

Get hold of them and sell them on. They're very popular

Ulvegrip wrote: To our collected know-how here in Sweden there is actually no non-open diff that fits into the S2 axle.

Here's one of mine from a S2 (which is a straight swap into my RX2):

Is that diff from a S2 with 4x110 bolt pattern and with a LSD?
What diameter are we talking here (both the big gear and the 3rd member) I need to have our S3 axles measured to see if your S2 axles.

If that is the same measurements as our S2 4x110 axles then you have something that will sell pretty fast here... since we have too few S3's to provide every S2 owner with stuff to swap in..
Not to mention the time savings compared to change the the whole front end save for subframe and steering linkage...

Yes, both from S2 RX7 (24 spline) with 4x110 pattern.

Here's a query I posted on Ausrotary about them. Duane who is their diff guru responded. I've explained the differences in the CWPs on there.

http://www.ausrotary.com/viewtopic.php?f=4&t=212376

They are popular here too as I've already had 2 PMs about them

Looks like the original mazda 24 spline diffs are rarer than honest salesmen...

Interestingly thouh there seems to be a few 24 spline options around as well as conversion kits.. see my post here viewtopic.php?f=11&t=170&start=10#p3943.

Right, 24 spline LSD going in the red one tomorrow as the back stepped out on me this afternoon at about 35 mph and upset the mrs.

You wanna see pics? It's not a first gen.

Any old skool Rotary with LSD diff is worth Pics.

Here's the pics from today.

The car is a 71 RX2 coupe.



Drained the old oil out first. It was pretty horrid.



Then pulled the brakes off and got the axles out.





Here's the old open diff in place. Took a few good hits with a hammer to get it to come loose.



Here's the diffs side by side.



Here's one of the axles inserted into the LSD to check it was a 24 spline LSD. this is the same LSD I posted pictures of above.



Here's the new LSD diff in place.



This is the only problem I encountered.



Filled it up with Castrol LSD oil. I bought it a few weeks ago in anticipation of fitting the LSD.

The axles slotted in quite happily and the stock RX2 2 piece driveshaft bolted straight up, although I do plan to upgrade the driveshaft to a custom 1 piece when the new engine and box goes in.

Really nice looking car!

Has it been restored or is it just one of those few oldskool that din't decide to rust away?

What are your plans for enigne and gearbox?

Thanks. It's very original and hasn't been restored. It's not perfect either but it's very good for 40 years old. No rust or welding ever been done.

Fitting a BP engine and modified FC box.

Really impressive, 40 years and that good shape... not may non dessert cars that can match that...

How often do you drive it?

Every chance I get