First gear in european AM code IRS gearboxes

[Bruce]

The AH definitely won't have a 9 tooth mainshaft.

[pupjoint]

ok thanks. AT it is then.

[pupjoint]

hey guys, found 2 more gearboxes AT and AM. both SSC.

i took the AT home; AT 02 12 4, i think it is the later style SSC. pics to follow.

the other is AM 5362701

Bruce, what is yr take on this AM box? no pic on the AM, forgot to take.

[Rasser]

Afaik thats the strongest stock case. Look at the top castings! Nice find!

[Bruce]

That case came out in the fall of 74.  Yours is Dec 2, 74.
Have a look at the bottom too!

Double ring side cover is stock on it.  Good for up to 250hp.

[pupjoint]

thanks!

 think u guys missed it in my last post.

the guy who sold me that box also has a SSC AM code box.

 code is AM 5362701

this SSC the top is not like in the pic, but the normal top....cant find a pic. think it is 69 to 72 earlier IRS....but SSC?

[pupjoint]

there u go, i copied this pic from Samba, tranny for dummies like me 



the AM box is just like the box on the RIGHT.

[pupjoint]

just wondering but what's an AM box like on the motorway?
a 4.37 r&p with a 0.93 4th is probably a bit noisy, or not?

just reread this thread from first post. should have done it earlier. so the AM SSC will have a 9 toothfirst gear, 4.37RP and 0.93 4th?

[Neil Davies]

Ok, here's a question - I've been offered a DC box out of a type 3. I don't know if it's an early or a late one, but it's a single side cover case. It's cheap (less than a meal out with the better half!) - worth a punt if only for the 4.12 R&P?

[JamieL]

Ok, here's a question - I've been offered a DC box out of a type 3. I don't know if it's an early or a late one, but it's a single side cover case. It's cheap (less than a meal out with the better half!) - worth a punt if only for the 4.12 R&P?

SSC case is always worth something - I went through 3 in the Ghia... 

[Bruce]

Ok, here's a question - I've been offered a DC box out of a type 3. I don't know if it's an early or a late one, but it's a single side cover case. It's cheap (less than a meal out with the better half!) - worth a punt if only for the 4.12 R&P?

A DC in a SSC case will have a 9 tooth mainshaft and a 4.13 R&P.  You will also get a fairly rare .89 top gear for a 002 mainshaft.

[dangerous]

Some times the SSC trans will still use the 10 tooth mainshaft,(well at least they do in Australia),
but most are the 9 tooth.
The third and fourth are usually fine tooth gears whether they are 113 or 002,
4th being a 0.883 ratio in the later DC trans.

There seems to be a pretty large overlap of the use of SSC cases and the change from 113 to 002 gears and mainshafts,
but with both AT and DC codes there are even DSC trans that had the 002 parts.
The ones I have seen thus equiped used O cut ring and pinions,
but the fnal drive ratios with those codes have always been as per all, of each,(if that makes sense).

This means for example, all the ATs had 3.875 R&P and all DC used 4.125,
and if fine tooth 3rd/4th, then 0.931 and 0.883 respectively.

[Bruce]

Dave, did VW of Aus build gearboxes, or did they just install a German made imported one?

[Rasser]

Some times the SSC trans will still use the 10 tooth mainshaft,(well at least they do in Australia),
but most are the 9 tooth.
The third and fourth are usually fine tooth gears whether they are 113 or 002,
4th being a 0.883 ratio in the later DC trans.

There seems to be a pretty large overlap of the use of SSC cases and the change from 113 to 002 gears and mainshafts,
but with both AT and DC codes there are even DSC trans that had the 002 parts.
The ones I have seen thus equiped used O cut ring and pinions,
but the fnal drive ratios with those codes have always been as per all, of each,(if that makes sense).

This means for example, all the ATs had 3.875 R&P and all DC used 4.125,
and if fine tooth 3rd/4th, then 0.931 and 0.883 respectively.

I have seen the exact same thing (Denmark). I have a AT and a DC with SSC and 10 tooth, and fine tooth 0,93 and 0,89 respectively. Actually the AT came from a bug imported from germany!

[dangerous]

Dave, did VW of Aus build gearboxes, or did they just install a German made imported one?

They did build boxes but only until about 1968 as far as I know.
Later cars were less Aussie content but gearboxes may still have been Aus, I really dont know.

I have an AH coded case here that is SSC too, but cant recall if it had the 002 mainshaft.
prob not, since I dont recall it having the sme style of date numbers as later trans'.

[pupjoint]

dint wana start a new topic, but anybody has any idea if this AH box come with the stronger first?

AH 4347117, DSC, he hasnt had the time to check if it has the bigger 20mm clutch shaft.

a freind found it back home, it was removed from a totaled 1302 which has a AD code 1600 motor with 10mm studs.

thanks

[dangerous]

I doubt it will be 9 tooth mainshaft with that code from the factory.
Look under the intermediate housing for the bolt that locates the front pinion roller bearing.
This will indicate that it is likely the earlier type bearing, which usually also had the earlier 10 tooth main shaft.

[pupjoint]

got some pics, it does have the 3.80 first from the nut under the carrier as mentioned 




this is the engine it came with