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post #1 of (permalink) Old 10-10-2002, 10:53 AM
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Clark 5 speed?

Does anybody run one of these? Let me know the good and bad about these transmissions. I've got one but I haven't used it yet because the engine isn't finished yet.
I'm afraid that it's going to take days to shift between gears.
Any comments good or bad will greatly appreciated.

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post #2 of (permalink) Old 10-10-2002, 11:24 AM
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Re: Clark 5 speed?

Those babies are BIG. You may have a problem with fitting it in. It will probably hang really low, or you will need a body lift to get it in. They are super strong though, and if you could make it work you would have a petty unique rig.
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post #3 of (permalink) Old 10-10-2002, 03:41 PM
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Re: Clark 5 speed?

I like them, but they are a bit of a pain to adapt, from what I have seen. A friend of mine has Clark, but couldn't seem to get the input shaft matched up to use with his 350. The input has to be replaced or machined down and maybe resplined. I'm not sure what the problem was with his, but he decided the SM465 route would be easier and less costly.
I've got an old article about on them and what adapting
will take if you want me to send it to you.

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post #4 of (permalink) Old 10-10-2002, 06:04 PM
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Re: Clark 5 speed?

[img]images/graemlins/smile.gif[/img]Those Clarks were very good shifting truck transmissions. Ford trucks used them for years in conjunction with the Eaton electric shift two-speed rear axles. I made many-a-shift on a Clark driving fif-dees vintage Ferd trucks. [img]images/graemlins/crazy.gif[/img] Here is something to keep in mind. Even some medium duty trucks had main trannys that had small input shafts. I had a 1970 4-spd GMC 2-ton, that had a small input, and I had one heck of a time finding a five-speed to fit up where my four-speed came out. I looked everywhere, and then out of the blue a guy drove in my yard looking to buy scrap and there in the back of his pickup was a five speed with a small input......go figgggger. [img]images/graemlins/crazy.gif[/img] [img]images/graemlins/wink.gif[/img]
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post #5 of (permalink) Old 10-11-2002, 09:32 AM
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Re: Clark 5 speed?

Thanks all for your input. Looks like I'll be reengineering the input housing on my Clark. I need to take off about .14 from the housing so it will sit flush.

Thanks again
post #6 of (permalink) Old 10-11-2002, 09:39 AM
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Re: Clark 5 speed?

Look in the small ads in the back of four wheeler or 4 wheel & off-road. There's always an ad for a company that specializes in putting the clark 5 speed in jeeps. I just don't remember who it is though.
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post #7 of (permalink) Old 10-11-2002, 10:48 AM
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Re: Clark 5 speed?

Performance Gear @ 601-796-2026 is the company that could help you out, I think when I was considering this I talked to them and they could swap gears around in the case for better drivability, I ended up going with a sm465 cause I already had one though.
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