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trans swap[ALL/1998] posted by STrotter on
Sunday, 4 May 1997, at 8:46 a.m.
I've got a 79 242 with a four speed. I want to switch over to a 5 speed OD unit, which I also have. What's involved? where do I find the OD shifter? Any help is appreciated!
Re: trans swap[ALL/1998] posted by Gilbert Kirk on
Wednesday, 7 May 1997, at 3:41 p.m.
The swap is easy enough - if you don't mind have and odd-shaped heavy hunk of metal on your chest (or just above it) for long periods of time. No big alterations involved, although you will need the shorter driveshaft which overdrive requires. Plus, a mess of extensions for your ratchet to reach the top bolts on the bell housing. Good luck!
Re: trans swap[ALL/1998] posted by Brian T. on
Thursday, 8 May 1997, at 6:51 p.m.
I believe you only need the front half of the driveshaft. I'm not sure about the 240s, but on my 122 I was able to use the front half of an automatic 122 driveshaft. The M46 also requires a heavier-duty trans mount. Also, there are two different shifters: the old style with the on-off switch, and the newer style with only a push button and the relay that turns the OD off automatically when you shift out of 4th. Get a wiring diagram to do it right. Good luck. As you probably know, that M46 is a long and heavy mother.---Brian
Re: trans swap[ALL/1998] posted by John Laughlin on
Friday, 9 May 1997, at 11:12 a.m.
Also, use a 164 engine mount (1206612) for the tranny mount. This can be done with both the M41 and the M46. Much stronger than the standard mount (1221967)