ahh i see i should read the entire thread on the second page before doing a quick reply.

 

Anyone has this LSD in their car or if someone can tell if it will fit my 1989?

 

The LSD on ebay is an early model. I am not sure where the break point is, but it will not fit an 85 or later. Jim at 928 International claims the early units can be modified with a machined ring to fit the later cars.

Looking at eBay there is quite a difference in price between the early and late units. I bought an early unit some time back for $212. The late units are in demand and generally seem to see in the $700 to $1K range.

The question I have is in the main pinion shaft from the early 5 speeds to the later ones. Is there a difference? I have never had an early box apart to compare.

 

There are at least three different styles of pinion shafts AFAIK. '78-84 has locking nut at rear end next to pinion bearing. On '85-95 nut is moved to the front. '92-95 pinion shaft front end is thicker than other versions. I think also input shafts inside diameter is changed at same time.

It might be possible to use '78-84 pinion shaft in later box if also '78-84 reverse gear is used. I wouldn't count on it though without checking very carefully.

In '87 gears were made 2-3mm wider. Not sure what this means in regards to pinion shaft lenght for example but suspect that it did stay same as box casing wasn't lenghtened.

 

I'd part with my extra 86 LSD unit for a grand

 

Maybe you need to PM me with more info :-)

 

Why so cryptic John?