Can anyone identify this gearbox please

[irishkeet]

Hi

This box came with the scooby engine I bought, I had a look here with no luck - http://vwt3.com/t3-tech/t3-data/t3-gearbox-codes/

Its a 4 speed box but the only marking I can see are shown here




cheers
irishkeet

[silverbullet]

Looks like the 2 letter codes have been removed by over-enthusiastic use of a flap wheel. They arent stamped as heavily as the date codes that remain

[irishkeet]

Looks like the 2 letter codes have been removed by over-enthusiastic use of a flap wheel. They arent stamped as heavily as the date codes that remain

Its a shame, is there a way to identify it from what is left?

[silverbullet]

Engage each gear, affix a pointer to the input shaft and turn both cv flanges at the same speed for 10 turns. Count the number of revs on the input shaft.
This way you can calculate each final drive gear ratio.
Might need a bit of guesswork to find the final drive, based on 3rd which is about a 0.95?

[bigherb]

Count the teeth on the crown wheel and pinion will give you the final drive ratio. Count the number of input shaft turns to the output pinion will give you the gear ratios, use the gearbox tables on the brickyard will give the box code.

[silverbullet]

Of course, the bellhousing is off...

[irishkeet]

Of course, the bellhousing is off...

tis indeed as it came with the RJES bellhousing, many thanks Ill take a look in the week and see if I can figure it out

[Aidan]

final drive ratio is stamped in 2mm high digits on the edge of the crown wheel will be either form K732 or G629 numbers will vary, Klingenberg or Gleeson cuts, Gleeson later, cheaper in mass production, 1986 probably ABD or ABB

[irishkeet]

final drive ratio is stamped in 2mm high digits on the edge of the crown wheel will be either form K732 or G629 numbers will vary, Klingenberg or Gleeson cuts, Gleeson later, cheaper in mass production, 1986 probably ABD or ABB

Cheers Aidan, good to see you Saturday

[irishkeet]

Finally got around to looking at the box today, here are the photos....G629 as you said Aidan