- Location
- In the islands
I did a search and came up empty. I know it was there, but where is it? I want to know my crawl ratio.
TIA.
TIA.
-
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AW4 Ratio
- Thread starter techno1154
- Start date
Vug
NAXJA Forum User
- Location
- West Michigan
He-e-re I come to save the da-a-a-y :anon:
This is the only place it can be found
http://www.vibratesoftware.com/html_help/html/chrysler/chrysler_transmissions.htm#4spat
This is the only place it can be found
http://www.vibratesoftware.com/html_help/html/chrysler/chrysler_transmissions.htm#4spat
- Location
- In the islands
Thank you Vug.
That info will be very useful for a long time.
One thing though, I always thought that 1st gear in the AW4 was more in the neighbourhood of 3.7:1. I guess the torque converter is what multiplies the torque. I now understand why the board cautions against 35+ tires with 3.55 gears.
Thanks again.
That info will be very useful for a long time.
One thing though, I always thought that 1st gear in the AW4 was more in the neighbourhood of 3.7:1. I guess the torque converter is what multiplies the torque. I now understand why the board cautions against 35+ tires with 3.55 gears.
Thanks again.
MJR
NAXJA Forum User
- Location
- Costa Mesa, CA
One minor item that is wrong on that chart. The 87-90 AW4's have a 0.70 OD ratio, but it is correct for the 91-up.
BrettM
NAXJA Forum User
- Location
- michifornia
I'm looking at my Advanced Adapters catalog and it says the AW4 has a 2.4 first and a .69 OD. Maybe these are both ratios for 87-90??
Of course they also said of the AW4 "This transmission was introduced in 1989 with teh high output 4.0L 6 cylinder engine in Jeep Cherokees"
there are 2 pretty blatant errors in that statement, perhaps they messed up on the ratios too
Of course they also said of the AW4 "This transmission was introduced in 1989 with teh high output 4.0L 6 cylinder engine in Jeep Cherokees"
there are 2 pretty blatant errors in that statement, perhaps they messed up on the ratios too
Can one multiply everything with 2, because of the torque converter? Or does it have another "ratio"? I've seen the data for several other automatics, and they're all listed as "2:1" ratio for the torque converter. Or is it rubbish to calculate this into the crawl ratio this way?
BrettM
NAXJA Forum User
- Location
- michifornia
check this out: http://www.pirate4x4.com/forum/showthread.php?s=&threadid=166107
the general consensus seems to be that the torque converter multiplys by 1.8-2.0, but it is generally not added into the equation, you simply say "I have 40:1 with an auto" not "I have 80:1 when you count my torque converter"
the general consensus seems to be that the torque converter multiplys by 1.8-2.0, but it is generally not added into the equation, you simply say "I have 40:1 with an auto" not "I have 80:1 when you count my torque converter"