auto--> Manual conversion.
12-14-02, 09:39 PM
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auto--> Manual conversion.
Im throwing a manual tranny/motor in a auto motor/tranny combo. I have the motor mounts in fine. The only thing i noticed tonight before i quit was that it looked like the tranny mount isnt in the same spot. Is the driveshafts different lengths for the two. Also i have another problem. I am changing the locks. I have power windows. When i took the ones out of the other car i had to take out one 10 mm bolt and the roll down the window and take another one off and then remove a couple rods. Well I can move the power windows without the car running. I tried to use a wrench but couldnt feel it. Any suggestions?
12-14-02, 09:52 PM
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Well, as far as the 5 speed conversion goes, you are correct, the tranny mounts don't line up, what you need to do is bolt in the automatic crossmember, and run a peice of angle iron from that to the 5 speed mount area, one second and I'll get some pictures.
12-14-02, 10:09 PM
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Damn, can you zoom in closer
Also, if the automatic tranny has overdrive, the driveshaft will be shorter than that of a 5spd. Here, this is from a web site I found.
"All North American spec Mazda rotary manual transmissions from 1974 through 1991 are the same length (~32") from the tip of the input shaft to the tip of the output shaft, with the possible exception of the 1974 RX-2, which may be around 40 mm shorter. Bell housing and input shaft were shortened for 1993-up models.
All Mazda rotaries from US model year 1974 on are equipped with the same bolt pattern. All such transmissions can be bolted to all such engines. The larger-clutch/flywheel assembly used on turbo models will prevent NA transmissions from being installed, but with no flywheel installed, an NA transmission will bolt up."
Also, if the automatic tranny has overdrive, the driveshaft will be shorter than that of a 5spd. Here, this is from a web site I found.
"All North American spec Mazda rotary manual transmissions from 1974 through 1991 are the same length (~32") from the tip of the input shaft to the tip of the output shaft, with the possible exception of the 1974 RX-2, which may be around 40 mm shorter. Bell housing and input shaft were shortened for 1993-up models.
All Mazda rotaries from US model year 1974 on are equipped with the same bolt pattern. All such transmissions can be bolted to all such engines. The larger-clutch/flywheel assembly used on turbo models will prevent NA transmissions from being installed, but with no flywheel installed, an NA transmission will bolt up."
12-14-02, 10:16 PM
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Actually, they are different. The automatic's yolk is bigger than that of the NA's (it's the same size as the TII's) so you'll need a na 5 speed driveshaft as well. And yes, I could've made them bigger 
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