Hear's the deal, The dude is getting ready to put a new 350 in his car. The cam is pretty big, and everyone recommended a TCI streetfighter 3000rpm torque converter. What kind of problems am I gonna have with my 2.73 geared pegleg rearend? (I am planning to put in a 12-bolt 3.73 posi, but THE DUDE is gonna have to save a little while longer!) At cruising speeds, the engine rpms are going to be below 3000 so what will happen? The tranny is a turbo 350 with a stage 2 shift kit, B&M deep pan, and a tranny cooler.

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Mark "THE DUDE" Skoch
1971 Malibu
(it's gonna be cool someday, really!)
THE DUDEMOBILE (http://www.beldarr.com/DUDE/DUDEcar.jpg)
Confucius say "Man with hand in pocket feel cocky all day"

i would use as big a cooler as you can find, and put your foot in it everytime you go any place! http://www.chevelles.com/forum/wink.gif be safe and have fun! if your easy on it and get that swap done soon it should be fine.

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www.chevelles.com/showroom/chrisfast66hb1.jpg (http://www.chevelles.com/showroom/chrisfast66hb1.jpg)

Basically alot of converter slippage which means lots of heat. Heat kills an auto tranny...Try to not drive the car long distances like this...you're bound to kill the tranny. You could always drive around in 2nd gear... http://www.chevelles.com/forum/rolleyes.gif That would be a temporary fix...

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1969 Caprice (It's not an Impala darnit!)
427/M-20 Finally!
12-bolt 4.10 Posi
13.45 @ 105

1966 Caprice
396/325 TH-400
15.38 @ 97.4

Andy and Nick's Muscle Car Half-way House (http://www.public.iastate.edu/~amcarthu)

Well the Street Fighter is a pretty tight unit, but in front of 2.73's it will feel like the deepest converter of all time.

I wouldnt do it

As a temporary fix, does anybody make a 3 series gear (preferably a 3.73) that would work in my 2 series carrier.

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Mark "THE DUDE" Skoch
1971 Malibu
(it's gonna be cool someday, really!)
THE DUDEMOBILE (http://www.beldarr.com/DUDE/DUDEcar.jpg)
Confucius say "Man with hand in pocket feel cocky all day"

Several milleniums ago BBD suggested starting at the rear to get better performance. Good advice. Get your rear gears where you want them and tailor the rest of the combo to them and your weight/torque. May cost a chunk of bucks up front but worth it. You would be suprised at the difference in acceleration (if thats what you are looking for) with the gear swap versus bad driveability and other possible problems with to much of a converter.

Instead of a 12 bolt which will cost you mega pesos, look at a conversion to Ltd Slip from PowerTrax, Auburn & Eaton. They all make them and the prices are resonable. This way you can upgrade and re-gear at the same time for much less $$$. Later on you could allways get a Currie 9" and sell the upgraded diff to recover some cash.

Hope it helps.

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Steve Soltesz
Team Chevelle Gold Member #37
68 Beaumont (396/TH350 Street/Strip)
69 Beaumont (307/TH350)
80 Camaro (Mrs.64's 355/TH350 Show'n Go)
64 Malibu SS Sold to 64Elcamino.

Favourite Quote: "Let out the Clutch Buddy, the Fan won't pull it!"