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Throw Out Bearing


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Easiest swap is an 80-83 320 5 speed; the 80/81 gearboxes are generally thought to be stronger than the later ones.  You'll need to shorten your driveshaft; since your '68 has a long neck differential the usual 90mm cut will be different.  You'll also need to get at least the front half of the 320 driveshaft so you'll have the driveshaft guibo flange that will mate with the tranny's guibo.  Any good driveshaft shop can shorten your driveshaft and rebalance it  You'll need to shorten the shifter platform 90mm or so too.  And since your 1600 uses the early style pressure plate (coil spring vs diaphragm) you'll need a different throwout bearing than what's normally used in this conversion.  Check the archives--there are many, many postings on 5 speed conversions--see if you can find some for an early 1600.


Installing a 5 speed will really help keep the revs down on the highway--in 5th your engine will be turning over 7-800 fewer rpms at a given speed...much more pleasant on long trips!




'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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It is quite a bit of work, and not exactly 'bolt-on' at all.  I like my 5-speed, but it's a lot of work and modification, and it doesn't make the car any quicker.  It just makes it more comfy on road trips and gets better mileage. 

If you just want to run around town with your car on the cheap, then just consider doing a new clutch kit and be done with it.

Bring a Welder

1974 2002, 1965 Datsun L320 truck, 1981 Yamaha XS400, 1983 Yamaha RX50, 1992 Miata Miata drivetrain waiting on a Locost frame, 1999 Toyota Land Cruiser

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