Gear ratio determination
12-17-2007, 12:04 PM
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Not the original trans... x3. That'* why I want to know what gear ratio it is. It seems to be a little more sluggish than previous two transmissions.
12-17-2007, 12:18 PM
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Originally Posted by putertopia
Not the original trans... x3. That'* why I want to know what gear ratio it is. It seems to be a little more sluggish than previous two transmissions.
does the n/a 3800 have the 4T60? i was hoping the transmission in the ssei would be somewhat stout.
12-17-2007, 12:36 PM
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Originally Posted by chris c
Originally Posted by putertopia
Not the original trans... x3. That'* why I want to know what gear ratio it is. It seems to be a little more sluggish than previous two transmissions.
does the n/a 3800 have the 4T60? i was hoping the transmission in the ssei would be somewhat stout.
the N/A haf the 4T60 pre 96. anything 96+ had the 4T65
but there where a number od different gear ratios in the transe for different cars
12-17-2007, 12:40 PM
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The "7ASW" on your tranny tag denotes 1997 C/H-Body 4T60E with 2.86 gears and 1420 stall torque converter:
http://home.att.net/~subzero350/1997-99_4T60-E.pdf
http://home.att.net/~subzero350/1997-99_4T60-E.pdf
12-17-2007, 12:47 PM
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FQ3 - ratio, transaxle, final drive 2.86
FR2 - ratio, transaxle, final drive 2.93
FW2 - ratio, transaxle, final drive 3.06
F17 - ratio, transaxle, final drive 2.84
F79 - ratio, transaxle, final drive 2.97
F83 - ratio, transaxle, final drive 3.05
GX3 - ratio, transaxle, final drive 3.33
FR2 - ratio, transaxle, final drive 2.93
FW2 - ratio, transaxle, final drive 3.06
F17 - ratio, transaxle, final drive 2.84
F79 - ratio, transaxle, final drive 2.97
F83 - ratio, transaxle, final drive 3.05
GX3 - ratio, transaxle, final drive 3.33
12-17-2007, 01:04 PM
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Originally Posted by agrazela
The "7ASW" on your tranny tag denotes 1997 C/H-Body 4T60E with 2.86 gears and 1420 stall torque converter:
http://home.att.net/~subzero350/1997-99_4T60-E.pdf
http://home.att.net/~subzero350/1997-99_4T60-E.pdf
That is dead on the money
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12-17-2007, 01:31 PM
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Originally Posted by Peterg22000
Originally Posted by chris c
Originally Posted by putertopia
Not the original trans... x3. That'* why I want to know what gear ratio it is. It seems to be a little more sluggish than previous two transmissions.
does the n/a 3800 have the 4T60? i was hoping the transmission in the ssei would be somewhat stout.
the N/A haf the 4T60 pre 96. anything 96+ had the 4T65
but there where a number od different gear ratios in the transe for different cars
shocked he'd go through 3. that is like 2004r, 42/44re territory.
12-17-2007, 01:40 PM
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Chris I know what you mean...
The 4T60-E is sort of hard to compare to a 4L60-E...
The 3T40( THM125 ) got a lot of its inners from the Turbo 350 way back when... The 3T40-E is a H*** bent little Transverse trans... Later thaey took a lot of what they learned and developed the THM440-T4, Basicly a larger 3T40 with an added gear... The 440-T4 then was renamed the 4T60, then later the 4T60-E.... The 60-e Is good for moving 6000 Lbs totall weight including the car....
putertopia, My guess is that you have FW2 in the RPO list.... But that trans is 100% 2.86..
Another thing I have to ask, with all of the trans failures did anyone ever flush out the trans cooler in the radiator to make sure that it wasn't plugged up in any manner to cause more failures?
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The 4T60-E is sort of hard to compare to a 4L60-E...
The 3T40( THM125 ) got a lot of its inners from the Turbo 350 way back when... The 3T40-E is a H*** bent little Transverse trans... Later thaey took a lot of what they learned and developed the THM440-T4, Basicly a larger 3T40 with an added gear... The 440-T4 then was renamed the 4T60, then later the 4T60-E.... The 60-e Is good for moving 6000 Lbs totall weight including the car....
putertopia, My guess is that you have FW2 in the RPO list.... But that trans is 100% 2.86..
Another thing I have to ask, with all of the trans failures did anyone ever flush out the trans cooler in the radiator to make sure that it wasn't plugged up in any manner to cause more failures?
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