Using (1-2) gear to slow down?
Thread Starter
Junior Member
Joined: Aug 2010
Posts: 54
Likes: 0
From: Green Bay, Wisconsin
Year: 1989
Model: Cherokee
Engine: 4.0 I6
I was wondering what you guys think about using (1-2) gear on my automatic transmission to slow down in poor conditions. Very close to where I park (Houghton, MI) there is a massive hill that I must slow down on, I have been using the low gear to help me slow down. Is this safe? Not only for the car, but also for me. I read on a site that was trying to sell a module to make it able to shift between 1st and 2nd gear, they say that using (1-2) can be dangerous because when the tranny shift from 2nd to 1st the abrupt change in resistance can cause the wheels to lock up, and cause a skid. Has anyone had this happen? Or are they just trying to get my money? Thanks alot
Member
Joined: Jan 2012
Posts: 108
Likes: 0
From: Truckee Ca,
Year: 1991
Model: Cherokee
Engine: 4.0 H.O.
Living in the mountain's with steep hill's, i down shift all the time. You do have to be a little careful when down shifting in the snow, with my Detroit locker in the rear, it will do a 180 spin at the drop of a hat. Also just for info, i had a transmission shop install a switch so when i put the gear selector in (1-2) gear, i can choose which gear it will stay in. This is a very nice feature while rock crawling, i can put the gear selector in (1-2) gear, and flip the switch down, and the Jeep will stay in 1st gear going down steep hills, and will not up shift until i flip the switch to 2nd gear, or move the gear selector up into 3rd gear. It is a modification i highly recommend...
Living in the mountain's with steep hill's, i down shift all the time. You do have to be a little careful when down shifting in the snow, with my Detroit locker in the rear, it will do a 180 spin at the drop of a hat. Also just for info, i had a transmission shop install a switch so when i put the gear selector in (1-2) gear, i can choose which gear it will stay in. This is a very nice feature while rock crawling, i can put the gear selector in (1-2) gear, and flip the switch down, and the Jeep will stay in 1st gear going down steep hills, and will not up shift until i flip the switch to 2nd gear, or move the gear selector up into 3rd gear. It is a modification i highly recommend...
Member
Joined: Jan 2012
Posts: 108
Likes: 0
From: Truckee Ca,
Year: 1991
Model: Cherokee
Engine: 4.0 H.O.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
I did it and like it OK. You DO need to pay attention with one more thing to handle.
The link I used is in this link as well.
https://www.cherokeeforum.com/f2/dec...105739/index2/
The link I used is in this link as well.
https://www.cherokeeforum.com/f2/dec...105739/index2/
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As far as I can tell they just have bigger output splines. It's still reffered to as the AW4 but some things are different like the lack of the comfort/power switch. I'll talk to a tranny guy tomorrow
Member
Joined: Jan 2012
Posts: 108
Likes: 0
From: Truckee Ca,
Year: 1991
Model: Cherokee
Engine: 4.0 H.O.
I want it cuz this torque monster motor doesn't know how to take off in the snow and on v6 fireturds and camaros, they have a way of taking off in second to bog down the engine a bit
FYI, the comfort/power switch, which its better to run in Power, less slippage. Newer ones IIRC, 92+ were "hard wired" in power mode.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
I was wondering what you guys think about using (1-2) gear on my automatic transmission to slow down in poor conditions. Very close to where I park (Houghton, MI) there is a massive hill that I must slow down on, I have been using the low gear to help me slow down. Is this safe? Not only for the car, but also for me. I read on a site that was trying to sell a module to make it able to shift between 1st and 2nd gear, they say that using (1-2) can be dangerous because when the tranny shift from 2nd to 1st the abrupt change in resistance can cause the wheels to lock up, and cause a skid. Has anyone had this happen? Or are they just trying to get my money? Thanks alot
Thread Starter
Junior Member
Joined: Aug 2010
Posts: 54
Likes: 0
From: Green Bay, Wisconsin
Year: 1989
Model: Cherokee
Engine: 4.0 I6
My tranny does not have the comfort/power switch, maybe that's a good sign. I should have paid more attention on what the tranny shop actually did to install the switch, but i just dropped it off for the day, and picked it back up when i got off work. All i know is that it works 




Is the newer tranny on a 97 different from the AW4 in my 91.