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914World.com _ 914World Garage _ 912 Trans compatibility

Posted by: pek771 Mar 26 2006, 07:36 PM

If one were to take an old 912 trans with attractive gearing, pull out the shafts, will these fit into a 914 box? I am still unsure of compatability of these two trans.
Thanks!
Pat

Posted by: ClayPerrine Mar 26 2006, 07:38 PM

The 912, other than the 912E, uses a 901 gearbox. The parts inside are interchangable with a 914 gearbox.

Posted by: pek771 Mar 26 2006, 07:54 PM

Thanks, Clay.
Is there any way of telling by case numbers, etc, the difference between a 912 and a 912E trans?
Pat

Posted by: ClayPerrine Mar 26 2006, 07:59 PM

QUOTE (pek771 @ Mar 26 2006, 07:54 PM)
Thanks, Clay.
Is there any way of telling by case numbers, etc, the difference between a 912 and a 912E trans?
Pat

A 912E trans was only used in 1976, and it looks just like a 915 trans out of a 911. The only difference is the clutch throwout arm and the input shaft.

But they are fairly rare.

Posted by: Bleyseng Mar 26 2006, 08:04 PM

I am running 3rd and 4th outta a 5 speed 912 gear box. Nice close ratios for upshifts and downshifts between 2nd thru 4th in my 2056 power band. I kept the stock ZD 5th for freeway drives.

Exchange the gear sets not the shafts

Posted by: pek771 Mar 26 2006, 08:14 PM

Thanks again:
This is for the 2.7 track car. Seems I'm having a bit of trouble finding an already built side shift trans, so I figure I'll collect some gearsets in case I have to build one. Supposedly this box has a real high ring and pinon set also.
Pat

Posted by: Bleyseng Mar 26 2006, 08:31 PM

Get the one in the best condition as parts are getting expensive. Sliders, dogteeth in good condition are a must in buying a "good" box or its just a core tranny.

Pull the gear cluster out if you are going to buy a box and look closely at it. If you need some tranny reading, read Redbeard's articles.