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  #1  
Old August 29th, 2017, 11:49
WildernessJeep WildernessJeep is offline
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AW4 Manual Kickdown to First

It looks like I'm going to have to rebuild my 1998 AW4 transmission. I'll probably also do the NP231 at the same time. One of my big complaints with this setup is that it won't stay in first, and will upshift to second gear. I'm recalling a way to install a switch that will keep it in first gear for a steep decline. My searches didn't show any solutions. Anyone got a trick for me to make this setup even more capable?
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Old August 29th, 2017, 11:51
blakews2217 blakews2217 is offline
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AW4 Manual Kickdown to First

Quote:
Originally Posted by WildernessJeep View Post
It looks like I'm going to have to rebuild my 1998 AW4 transmission. I'll probably also do the NP231 at the same time. One of my big complaints with this setup is that it won't stay in first, and will upshift to second gear. I'm recalling a way to install a switch that will keep it in first gear for a steep decline. My searches didn't show any solutions. Anyone got a trick for me to make this setup even more capable?


Don't jump to conclusions. I had the same issue before I adjusted my shift linkage. Fixed my issue along with a few others( NSS issues). Adjust it and give it a shot


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  #3  
Old August 29th, 2017, 11:56
RCP Phx RCP Phx is offline
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Re: AW4 Manual Kickdown to First

There is a 1 to 2 easy defeat out there!
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  #4  
Old August 29th, 2017, 12:21
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old_man old_man is offline
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Re: AW4 Manual Kickdown to First

The best answer IMHO is not the electric switch since it causes a check engine light on newer XJs but the shift kit available for the AW4. You get better and more solid shifts and it deals with the 1/2 issue. You can get them at Jegs/Summit/RockAuto for less than $100.
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  #5  
Old August 29th, 2017, 12:58
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Re: AW4 Manual Kickdown to First

Quote:
Originally Posted by old_man View Post
The best answer IMHO is not the electric switch since it causes a check engine light on newer XJs but the shift kit available for the AW4. You get better and more solid shifts and it deals with the 1/2 issue. You can get them at Jegs/Summit/RockAuto for less than $100.
X2

It works great.
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  #6  
Old August 29th, 2017, 14:49
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Re: AW4 Manual Kickdown to First

What these guys said. Transgo HD-2 shift kit and forget about it. The stock TCU does a pretty good job once you firm things up a bit.

http://a.co/dQ8rCrK
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  #7  
Old August 29th, 2017, 17:54
jabinco jabinco is offline
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Re: AW4 Manual Kickdown to First

Quote:
Originally Posted by WildernessJeep View Post
It looks like I'm going to have to rebuild my 1998 AW4 transmission. I'll probably also do the NP231 at the same time. One of my big complaints with this setup is that it won't stay in first, and will upshift to second gear. I'm recalling a way to install a switch that will keep it in first gear for a steep decline. My searches didn't show any solutions. Anyone got a trick for me to make this setup even more capable?
This seems backward to me. When in 1-2, mine stays in first and won't shift to second until like 4500 rpm. Initially I thought it was a problem, and searched the internet for a solution, but as I recall, the consensus was that this was normal.

Edit: I see yours is a 98, maybe it's different than my 96?

Last edited by jabinco; August 29th, 2017 at 17:58.
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  #8  
Old August 29th, 2017, 23:37
lawagoneer lawagoneer is offline
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Re: AW4 Manual Kickdown to First

For full control go to: http://www.radesignsproducts.com. I have the RAIL II shifter in my XJ. He makes great products and will give you full manual control and retain auto function for daily driving. His prices are good as well and I he is a sponsor here.
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Old August 30th, 2017, 08:31
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LJRockstar LJRockstar is offline
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Re: AW4 Manual Kickdown to First

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Originally Posted by lawagoneer View Post
For full control go to: http://www.radesignsproducts.com. I have the RAIL II shifter in my XJ. He makes great products and will give you full manual control and retain auto function for daily driving. His prices are good as well and I he is a sponsor here.

This is exactly what I've been looking for! Are you totally pleased with the setup? I was strongly considering swapping in a 5 speed but this seems to be the best of both worlds. I like the torque converter lockup switch too.
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  #10  
Old August 30th, 2017, 09:00
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jrowell jrowell is offline
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Re: AW4 Manual Kickdown to First

Quote:
Originally Posted by jabinco View Post
This seems backward to me. When in 1-2, mine stays in first and won't shift to second until like 4500 rpm. Initially I thought it was a problem, and searched the internet for a solution, but as I recall, the consensus was that this was normal.

Edit: I see yours is a 98, maybe it's different than my 96?
I believe it is supposed to stay in First until you redline then it goes to second. Mine used to shift into 2nd really quick and not hold first at all sucked going down steep hills. I changed the NSS for another issue and it changed mine to the stay in first till redline. I do not know the correlation, but that is what changed mine.
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  #11  
Old August 30th, 2017, 10:44
lawagoneer lawagoneer is offline
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Re: AW4 Manual Kickdown to First

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Originally Posted by LJRockstar View Post
This is exactly what I've been looking for! Are you totally pleased with the setup? I was strongly considering swapping in a 5 speed but this seems to be the best of both worlds. I like the torque converter lockup switch too.
I love my RADesigns setup. I also installed the torque converter lock at the same time. He also has a stand alone shifter but I chose the RAIL II because I do occasionally drive my XJ on the street and wanted to retain full auto function as well. Rory is a great guy to deal with and will answer any questions you may have.

Last edited by lawagoneer; August 30th, 2017 at 10:48.
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