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Mon Jan 19, 2015 3:22 pm

Seems all I can find is Bob & daves list of codes, think this might be European or Australian.

Anyone have a list of codes for the US market?

Reason is I have a trans form a 74 Ghia. Single side cover but it has a AH code? Some older 6v transes with just numbers. etc etc

Thanks

Dave

Mon Jan 19, 2015 3:49 pm

I think auto zone can read the codes.

Mon Jan 19, 2015 3:52 pm

?????

Good one. transmission ID codes

Mon Jan 19, 2015 3:56 pm

Is it the same as this?
Not sure how accurate it is... as far as I know, all '74s ghias had a 3.875 diff, as did all 1600 IRS Bugs...?

Aircooled VW Gearbox Codes
AA 1200 4.375 From chassis No 0 981 810
AB 1300 4.375 up to 8/70
AC 1500 4.125 Also some 1300 from 8/70
AD 1200 4.375 Limited Slip Diff
AE 1300 4.375 Limited Slip Diff
AF 1500 4.125 Limited Slip Diff up to 8/70
also some 1300 from 8/70
AG 1200 4.375 Type 147 (Fridolin)
AH 1500 4.125 IRS from 8/68
1600 4.125 8/69 - 8/72
AK 1500 3.875 Type 181 Trekker up to 8/70
1600 3.875 Type 181 Trekker from 8/70
AL 1500 3.875 Type 181 with LSD up to 8/70
1600 3.875 Type 181 with LSD from 8/70
AM 1300 4.375 Saloon and Cabriolet from 8/70
AN 1600 3.875 KG with IRS from 8/70
AO 1600 3.875 KG from 8/70
AP 1300 4.375 LSD from 8/70
AQ 1600 4.125 LSD 8/70 - 8/72
AR 1600 3.875 KG with LSD from 8/70
AS 1600 3.875 Type 1 from 8/72
AT 1600 3.875 1303s and Cabriolet from 8/72
AU 1600 3.875 As above with LSD
BA 1300/1500 4.375 Semi-auto from 8/68 - 8/70
BC 1300/1500 4.375 As above with LSD
BE 1600 4.125 Semi-auto from 8/70 - 8/71
BF 1600 4.125 As above with LSD
BG 1300 4.125 KG with Semi-auto from 8/70
BH 1300 4.125 As above with LSD
BJ 1300 4.375 Semi-auto from 8/70
BK 1300 4.375 As above with LSD
DA 1500/1600 4.125 Type 3 swingaxle up to 8/68*
DB 1500/1600 4.125 As above with LSD*
DC 1500/1600 4.125 Type 3 with IRS from 8/68
DD 1500/1600 4.125 As above with LSD

Mon Jan 19, 2015 3:58 pm

:wink:

Mon Jan 19, 2015 4:00 pm

Most of the Internet transaxle codes contain many errors.

The AH code transaxle is out of a Bug. Probably a 4.12 R&P gear. The '74 Ghia came with a AN code transaxle.

6volt trans with no numbers were 4.37 R&P gears

Mon Jan 19, 2015 4:06 pm

VWCOOL -reprint of dave & Bob codes.

You would think the trans out of the 74 ghia would be an AN but it is an AH with a single side cover. Maybe I misread it.

Mon Jan 19, 2015 4:15 pm

OK that is why I was asking if it was the same... I can't recall where I got it (possibly a decade ago) but Because Internet, they have all been cut 'n pasted a hundred times...

Mon Jan 19, 2015 5:51 pm

satterley_sr wrote: VWCOOL -reprint of dave & Bob codes.

You would think the trans out of the 74 ghia would be an AN but it is an AH with a single side cover. Maybe I misread it.

Just because you pulled it out of a Ghia DOES NOT mean it was the original transaxle that came in the Ghia. It could have been changed many years ago.

Mon Jan 19, 2015 6:13 pm

True but I think the single side cover trans were only in the newer vehicles. Yea 40 years old instead of 45 or 50 years old.

Mon Jan 19, 2015 6:58 pm

VW started using the single side cover case in late 72.

Tue Jan 20, 2015 6:10 am

You could always pull the plug an count teeth on the ring gear :wink:

Tue Jan 20, 2015 7:36 am

I have never seen an ah trans that wasn't a gleason 4.12, single or double cover. Unless it has been built by someone.

Tue Jan 20, 2015 3:02 pm

FWIW, later Type 3s had a 'straight rib' SSC trans, too, but with a 4,12 diff. Code is DC, I think, and it's a good box for heavier cars, or street performers, as 1-3 gears are a little lower overall

Tue Jan 20, 2015 4:31 pm

The only difference in the later t-3 boxes was the r/p was a klink instead of gleason, the ratios were the same. VW only used 3.78x 2.06 and earlier 3.80x 2.06 1-2 sets.

Tue Jan 20, 2015 5:02 pm

Shift it into 2nd gear, and count how many turns of the input shaft it takes to turn the cv cups over one revolution. 8.5 turns for a 4.12, and 8 for a 3.88 r&p.

Wed Jan 21, 2015 4:03 pm

mcmscott wrote: The only difference in the later t-3 boxes was the r/p was a klink instead of gleason, the ratios were the same. VW only used 3.78x 2.06 and earlier 3.80x 2.06 1-2 sets.

yeah I was only highlighting the fact that not ALL SSC trans are Beetle... the later Type 3s had one too and it's a good 'street' box

Wed Jan 21, 2015 4:19 pm

VWCOOL wrote: FWIW, later Type 3s had a 'straight rib' SSC trans, too, but with a 4,12 diff. Code is DC, I think, and it's a good box for heavier cars, or street performers, as 1-3 gears are a little lower overall

You also said that 1-3 gears were lower, which is not true.

Thu Jan 22, 2015 5:13 am

mcmscott wrote: VWCOOL wrote: FWIW, later Type 3s had a 'straight rib' SSC trans, too, but with a 4,12 diff. Code is DC, I think, and it's a good box for heavier cars, or street performers, as 1-3 gears are a little lower overall

You also said that 1-3 gears were lower, which is not true.

It seems you missed 'overall':

the SSC IRS box used in the last of the Type 3s has a 4.125 diff and 0.89 fourth gear. It has lower overall gearing in first to third gears than the visually identical Beetle IRS SSC box which has a 3.875 diff and 0.93 fourth gear.

For many situations this makes it a better gearbox for heavier cars

Thu Jan 22, 2015 6:57 am

VWCOOL wrote: mcmscott wrote: VWCOOL wrote: FWIW, later Type 3s had a 'straight rib' SSC trans, too, but with a 4,12 diff. Code is DC, I think, and it's a good box for heavier cars, or street performers, as 1-3 gears are a little lower overall

You also said that 1-3 gears were lower, which is not true.

It seems you missed 'overall':

the SSC IRS box used in the last of the Type 3s has a 4.125 diff and 0.89 fourth gear. It has lower overall gearing in first to third gears than the visually identical Beetle IRS SSC box which has a 3.875 diff and 0.93 fourth gear.

For many situations this makes it a better gearbox for heavier cars

You missed AH code, which is a g 4.12 ring and pinion. The later AT coded boxes had G 3.88 ring and pinions. There were many AH coded single cover trans. You should have stated t-3 and AH coded boxes have lower final drives in 1-3 than an AT box. Also most t-3 boxes had the more desireable Klink. ring and pinion.