Spit131

Posted this in the wrong place yesterday , dohh !!!
Hi all ,
I am fitting a 160 diff unit into my Triumph Spitfire with a neat , hard to come by kit from New Zealand .
I have decided to run with a 1.5 way Kaaz which I shall have fitted to my new 4.11 currently standard viscous unit by Phil at Road and Race transmissions in Kent .
My rear hubs and discs are MGTF so I will only need the inner CV's to link with the diff and the model numbers for these ( RH 28092FA030 , LH 28092FA040 ) are listed on the Kaaz site next to the appropriate Kaaz unit ( DBF2035 ) ??/
someone on another forum listed these shaft numbers as inner joint numbers and said the shaft numbers were RH 28021FA030 and LH28021FA171 ???
As I said I only need inner joints but would be happy to take full shafts if I have to . Conformation of part numbers would be good .
However, I was looking at plated or Torsen AP units at first and was ' miss-sold ' one on eBay . I believe it is a STI RA viscous unit but I would really appreciate conformation of this prior to relisting it .
The unit was listed by a Northern Ireland ' Subaru outfit ' as a ' new . 2 way . mechanical . part number ST306005500 ' which appears to me to match in fact the plated unit ?? hence why I bought it . ( has ' C3D5 ' on it ) As it happens I already had a decent second hand one of these as shown in the pictures .
I have linked some pictures of the diff in question , a picture showing the difference between this type of viscous and the standard type I have , a picture of the NZ fitting kit and a picture of the car and engine in question .
Any additional information/conformation/contradiction concerning any aspect of the above would be very helpful . Matt . Thank you , Thank you !!

Spit131

I have another question for you ,
Out of curiosity , I see there is an STI mechanical 180 ( so no good to me ) Inards on eBay which is listed at £350 or offer so could poss be had for £300 .
I don't know if this refers to a Suretrac or plated but I am surprised that it had been on there for so long . I would have thought it would have been snapped up . ? . Matt .

Spit131

Some one must have some idea .
Sorry but badly need to claw something towards the Kaaz and fitting .
Any information or idea of value please ????

Spit131

Triumphs might have been made in Coventry but do I have to live there ?
I did say PLEASE ! , come on boys ! I have faith in you ! M .

Spit131

I give up !

trails

iTrader: (41)

well it's definatley a plated diff...there are some photos on my build thread of a disassembled Suretrac diff if that helps. Sorry no idea about part numbers, have a look here; http://bbs.22b.com/forums/forum.php

Spit131

Hi Trail ,
Thanks for a reply . I checked your link but could only find your clutch thread .
This is not a plated LSD .
There are of course plates in a viscous unit like this but as they are non contact plates and only driven by the viscous fluid between them it is called a viscous unit to identify its difference from a plated LSD like a Kaaz or cusco plated diff where the plates are driven against each other directly .
In the pics you can see two small ball bearings through the crown wheel side plate which are used to seal the viscous fluid into the viscous unit .
If it was plated there would have to be a system for forcing the plates together which there is not .
The Suretrac LSD is completely different again . The inside of these look like a strange type of Rubics cube system so it is deff not that .
I am happy to be proved wrong but I still think this is the Impreza STI RA viscous rear diff . Matt .