Manual to auto swap?
10-25-2010, 02:42 AM
#31
JK Super Freak
I know. I'm at a loss as well. The complaints about the poor gearing of the 42RLE automatic transmission when mated to either the 4.0L TJ or 3.8L JK engine are commonplace on every jeep forum and every print magazine.
Maybe if the switch was to an automatic that did not have a 0.69 overdrive gear ratio I could understand.
Even with 5.38 gears, Rancho exhaust, and Superchips tune, my wife's 4 dr automatic has terrible performance compared to my 6 speed 2 door on 5.13s.
No offense to those considering a swap to an automatic, but without a supercharger or something, it is a step down in performance.
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Maybe if the switch was to an automatic that did not have a 0.69 overdrive gear ratio I could understand.
Even with 5.38 gears, Rancho exhaust, and Superchips tune, my wife's 4 dr automatic has terrible performance compared to my 6 speed 2 door on 5.13s.
No offense to those considering a swap to an automatic, but without a supercharger or something, it is a step down in performance.
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10-25-2010, 01:05 PM
#32
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Join Date: Dec 2006
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I agree performance-wise but after 3 years im just sick of shifting especially in stop-n-go traffic. And now novak makes a nsg-370 to chevy 350/ LS adapter so id like to try out a six speed in my CJ.
10-25-2010, 05:59 PM
#33
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Join Date: Aug 2007
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Sorry this took so long to post.
Parts List for Automatic tranny conversion:
PCM-5150466-AA $229.50
PCM FLASH p/n 5187685AD
Oil supply tubes-55056624-AB $56.03
Tranny flexplate-4736299-AB $40.50
flexplate washer-4471933 $3.33
hex bolts-6503465 (quantity 8) $23.44
hex bolts-6504383 (quantity 4) $ 7.20
cable bracket-52121833-AC $3.15
brake reservoir-68003618-AC $15.95
center console panel-1CG44XDV-AB $36.45
brake reservoir grommets-68004449-AA (qty 2) $4.86
transfer case cable clip-68018106-AA (just in case you break it) $.95
starter cover-4861592AA $2.10
tranny oil filter-68059549-AA $18.18
wiring harness-4801598-AD $211.50
shifter lever-52060162-AD $71.96
shifter cable-52060164-AD $40.14
cable bracket-52060163-AD $7.97
shifter sled-52060490-AE $26.78
wiring harness-56051549-AG $260.10
nuts-6506603-AA (qty 5) 24.55
hex bolts-6104044-AA (qty 3) 17.55
bracket-55398213-AA $1.58
pan screw-6104155-AA (qty 2) $1.26
center console-1FG73BD5-AB $57.42
I was fortunate enough to get the dip stick, dip stick tube, torque converter, and tranny mount included with the transmission. Those part numbers are not hard to acquire but I don't currently have them. Feel free to PM me if you have any questions.
Just a little input for the peanut gallery on here. I'm really enjoying this automatic transmission. I'm not exactly sure what kind of hot-rod performance people expect out of this vehicle but all the nah saying is getting old. It started off with "it can't be done" to "why would you want to" My opinion on the subject, and the benefits I see are:
1. You don't put yourself in as many dangerous situations with a auto (eg stalling on rock faces and losing important ground while trying to crank back up)
2. much easier to drink beer on the trail.
3. less shock loads on your ring and pinion gears due to the torque converter dampening a lot of stress and forces applied to your diff's
4. the ability to add the Rubi-crawler underdrive...10.88:1 crawl ratio sounds bitchin to me...maybe I'm crazy?
5. doing what everyone said couldn't be done...priceless
Parts List for Automatic tranny conversion:
PCM-5150466-AA $229.50
PCM FLASH p/n 5187685AD
Oil supply tubes-55056624-AB $56.03
Tranny flexplate-4736299-AB $40.50
flexplate washer-4471933 $3.33
hex bolts-6503465 (quantity 8) $23.44
hex bolts-6504383 (quantity 4) $ 7.20
cable bracket-52121833-AC $3.15
brake reservoir-68003618-AC $15.95
center console panel-1CG44XDV-AB $36.45
brake reservoir grommets-68004449-AA (qty 2) $4.86
transfer case cable clip-68018106-AA (just in case you break it) $.95
starter cover-4861592AA $2.10
tranny oil filter-68059549-AA $18.18
wiring harness-4801598-AD $211.50
shifter lever-52060162-AD $71.96
shifter cable-52060164-AD $40.14
cable bracket-52060163-AD $7.97
shifter sled-52060490-AE $26.78
wiring harness-56051549-AG $260.10
nuts-6506603-AA (qty 5) 24.55
hex bolts-6104044-AA (qty 3) 17.55
bracket-55398213-AA $1.58
pan screw-6104155-AA (qty 2) $1.26
center console-1FG73BD5-AB $57.42
I was fortunate enough to get the dip stick, dip stick tube, torque converter, and tranny mount included with the transmission. Those part numbers are not hard to acquire but I don't currently have them. Feel free to PM me if you have any questions.
Just a little input for the peanut gallery on here. I'm really enjoying this automatic transmission. I'm not exactly sure what kind of hot-rod performance people expect out of this vehicle but all the nah saying is getting old. It started off with "it can't be done" to "why would you want to" My opinion on the subject, and the benefits I see are:
1. You don't put yourself in as many dangerous situations with a auto (eg stalling on rock faces and losing important ground while trying to crank back up)
2. much easier to drink beer on the trail.
3. less shock loads on your ring and pinion gears due to the torque converter dampening a lot of stress and forces applied to your diff's
4. the ability to add the Rubi-crawler underdrive...10.88:1 crawl ratio sounds bitchin to me...maybe I'm crazy?
5. doing what everyone said couldn't be done...priceless
Last edited by Ken Jong Il; 10-25-2010 at 07:44 PM.
10-29-2010, 04:06 AM
#34
JK Super Freak
I think its great to BUILD the vehicle you want.. regardless of what anyone else wants....
personally I like the auto JK I just got.. I had 2 unlimited 6 speeds previous.. and now have a 2 door auto..
yes I liked driving a stick.. prefer it in fact. . however my JK auto has much more power than either of my 2 unlimiteds had. . i can actually get on a freeway now and be up to speed by the time I reach the moving lanes...
if im climbing hills or driving into a high headwind I do the same as i did in the 6 speed.. I simply shift out of overdrive.... turning off the OD allows the converter to stay locked out in 3rd gear, reducing heat, and avoiding an overheated trans...
my own personal opinion after getting accustomed to my auto is that those that have issues with them havent learned how to run it and make the most out of it for the particular situation...
plus there are numerous programmers out there that will change the behaviour of your auto to suit what works and feels right for you...
I once said that I would never buy an automatic in a wrangler.. but now that I have it, im really getting to like it...
-Christopher
personally I like the auto JK I just got.. I had 2 unlimited 6 speeds previous.. and now have a 2 door auto..
yes I liked driving a stick.. prefer it in fact. . however my JK auto has much more power than either of my 2 unlimiteds had. . i can actually get on a freeway now and be up to speed by the time I reach the moving lanes...
if im climbing hills or driving into a high headwind I do the same as i did in the 6 speed.. I simply shift out of overdrive.... turning off the OD allows the converter to stay locked out in 3rd gear, reducing heat, and avoiding an overheated trans...
my own personal opinion after getting accustomed to my auto is that those that have issues with them havent learned how to run it and make the most out of it for the particular situation...
plus there are numerous programmers out there that will change the behaviour of your auto to suit what works and feels right for you...
I once said that I would never buy an automatic in a wrangler.. but now that I have it, im really getting to like it...
-Christopher
10-27-2014, 02:36 PM
#35
JK Enthusiast
11-07-2014, 06:36 PM
#37
JK Newbie
Join Date: Jan 2014
Location: Austin Texas
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I'm currently going the other way, my 42RLE is roasted, I pulled it out and I'm putting in the NSG370. The auto is a garbage transmission from the dodge caravan turned 90 degrees. I've had to rebuild 3 of them on 3 different vehicles at about $2300 a pop.
