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M12 Crossmember |
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thirdgenowner 
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Joined: Mar/03/2012 Location: Illinois Status: Offline Points: 220 |
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 Topic: M12 CrossmemberPosted: Apr/05/2014 at 1:16pm |
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'69 Rambler - out goes the 199 and in will eventually go a '67 4bbl 343 I have. I also have an M12 to bolt to it. I'm suspecting I'll need a different crossmember for the tranny. I'm also open to opinions on this combination. I'm wanting to stick with the stock 343 - plenty of power without fear of my kid getting carried away when he drives it. Any advise is greatly appreciated. Thanks in advance.
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Living vicariously thru my Rambler
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Wrambler
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Joined: Jul/02/2007 Location: West Virginia Status: Offline Points: 4199 |
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Posted: Apr/08/2014 at 10:07am |
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Really? you think a stock 343 isn't going to have enough power to worry about? I'm just sayin.... Even bone stock a 343 in a 69 Rambler is going to be pretty much a hand full. Now if you built it and let me take it over  I wish my dad would have let us put the 343 4 speed we found in a wrecking yard in our 65 American. He flat out refused to let us do it and we, my brother and I, were already bracket racing our other cars. Arg... |
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Wrambler
69 AMC Rambler 4.0L, 5 speed 2015 Grand Cherokee Limited 2019 Chrysler 300 |
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amc67rogue
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Joined: Nov/05/2008 Location: Phx. AZ. Status: Offline Points: 1578 |
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Posted: Apr/08/2014 at 10:12am |
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All the Americans used the Alum. case trans, but IIRC all the trans mounts on the warners ( Alum. iron & the 4 Spds.) are in the same place .
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Keith Coggins 67Rogue X code
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amc67rogue
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Joined: Nov/05/2008 Location: Phx. AZ. Status: Offline Points: 1578 |
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Posted: Apr/08/2014 at 10:45am |
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Also check the tunnel clearence , the M11 & 12 were never used in the American body.
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Keith Coggins 67Rogue X code
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thirdgenowner
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Joined: Mar/03/2012 Location: Illinois Status: Offline Points: 220 |
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Posted: Apr/08/2014 at 3:52pm |
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Many years ago a friend was killed with a hi-perf combo. In this instance, he pegged the accelerator coming out of a turn where it picked up the front wheels and put him straight into a tree. Don't think the stock 343 has that ability......a 390 or 401, probably. So yeah, the 343 is plenty powerful, but not obscenely so. |
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Living vicariously thru my Rambler
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thirdgenowner
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Posted: Apr/08/2014 at 4:10pm |
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So the T-10 was the stock match with the 343? |
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Living vicariously thru my Rambler
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amc67rogue
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Posted: Apr/08/2014 at 4:40pm |
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Keith Coggins 67Rogue X code
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thirdgenowner wrote: