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Old 09-11-2012, 07:35 PM   #1 (permalink)
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Hemi 4 speed

Just blew up my 18 spline A833. Any suggestions on where to go from here? 4000#, 650HP, drag radials, and driving it like I stole it. I know a guy with an NOS 72 A body 18 spline gear box, never installed. The price is right, but I'm afraid I'll blow this up too.
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Old 09-11-2012, 09:06 PM   #2 (permalink)
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Check with these people
http://www.keislerauto.com/Keisler_A...gineering.html

or maybe a lenco
http://www.lencoracing.com/ST1200MasterPage.html

Last edited by TVLynn; 09-11-2012 at 09:11 PM.
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Old 09-29-2012, 05:36 PM   #3 (permalink)
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I would avoid Keisler like the plague but Passon may have a good solution for you
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Old 11-27-2012, 01:34 PM   #4 (permalink)
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Call Jamie at Passon Performance.
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Old 11-27-2012, 04:33 PM   #5 (permalink)
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If you are looking for a rebuild able core the is a junk yard in main that has multiple from old mopars . Sound like a fun ride 650 hp yea ha !!
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Old 11-27-2012, 05:48 PM   #6 (permalink)
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the Tremec tranny shift poorly & barely hold up to the power rating , the new passon 4 or 5 spd is far stronger
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Old 11-27-2012, 07:08 PM   #7 (permalink)
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I spoke to Jamie, he said I've surpassed the limits of the Hemi gearbox. I also spoke to David Dudek who agreed. I was going to order a RS600 from Kiesler. Now I'm nervous about that. If the A855 was going to be available soon I would go with that. Psyco, what has your experience been with Keisler?
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Old 11-28-2012, 04:25 AM   #8 (permalink)
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First the A body 833 is different , the internals can be used but the talishaft length & housing is different
Keisler is the worst to deal with http://www.cuda-challenger.com/cc/in...6896#msg816896
horrible customer service , incomplete kits , lies about delivery times . on top of that if you shift the tremec hard first it is notchy not fast & smooth & second the syncro rings will fail . one that Keisler send leaked , when checked closely they had machined through the case ... no problem ship it back at your cost & we will replace the case 3500 miles + ship it internationally at our cost LOL . Classic performance / Tony Edler does the same conversion kits & is far better to deal with if you go that route
Yyou may want to look at the Viper T56 magnum trans
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Old 11-29-2012, 06:41 PM   #9 (permalink)
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I know the transmissions differ by body style, but my tailshaft housing will bolt on. Its not strong enough anyway. Viper trans...interesting. Are you aware of anyone doing this swap before?
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Old 11-29-2012, 10:36 PM   #10 (permalink)
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yes the tailhousing bolts on the 833 but you also need the longer tailshaft which will swap also if not damaged .
there are numerous people doing T56 swaps , it is not floor friendly but very doable http://www.cuda-challenger.com/cc/in...?topic=70418.0
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Old 12-01-2012, 04:55 PM   #11 (permalink)
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here is another thread http://www.dodgecharger.com/forum/in...c,95382.0.html
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Old 12-01-2012, 04:55 PM
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