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Author: Subject:  76 beetle irs gearbox Overdrive 4th gear???
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posted on March 12th, 2014 at 10:31 PM
76 beetle irs gearbox Overdrive 4th gear???


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
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posted on March 12th, 2014 at 10:41 PM



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




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posted on March 13th, 2014 at 06:20 AM



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.
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posted on March 14th, 2014 at 09:04 PM



Thanks for the input guys.
Cheers Jade


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