Hi,
Can anybody confirm or deny a rumour that I have head, that the 4 speeds fitted to the last of the Beetles (1976) had an overdrive fourth gear.

Thanks Jade

All VW Beetle boxes are overdrive on 4th gear

The final gear ratio in the diff makes a difference also.

4.375, 4.175, 3.875

I think what you're asking is do they have a taller 4th gear?

no they don't it is actually shorter.
73-76 IRS bug boxes were all geared the same, they have the 0.93 4th gear unlike the pre 72 which have a 0.89

they made it shorter to keep the revs the same at 100km/h when the taller 3.88 diff was fitted to maintain proper cooling fan speed.

Thanks for the input guys.
Cheers Jade