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Old 09-30-2012, 06:00 PM
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05 6 speed NSG 370 Reverse Issue

I'm having a worsening issue with my transmission. Shifting into reverse, she don't wanna go in. It seems like it is in gear, but let out the clutch and it pops out. The only way to be sure it is in is to let the clutch out a bit and " pop" it into gear. This is often accompanied by some embarrassing grinding and a bit of stress.
Any thoughts- gladly appreciated.
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Old 09-30-2012, 06:04 PM   #2
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Quote:
Originally Posted by jrbspace
I'm having a worsening issue with my transmission. Shifting into reverse, she don't wanna go in. It seems like it is in gear, but let out the clutch and it pops out. The only way to be sure it is in is to let the clutch out a bit and " pop" it into gear. This is often accompanied by some embarrassing grinding and a bit of stress.
Any thoughts- gladly appreciated.
My 05 does the exact same thing, although I haven't had it happen in a while. Just make sure you are completely stopped before shifting into reverse, and pay attention when shifting to make sure it went all the way into gear. If it doesn't go all the way in; shift to another gear, then shift back to reverse, and it should go in.

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Old 09-30-2012, 08:05 PM
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Thanks. That's about how I've been dealing with it. What I'm trying to find out is the cause and a possible solution. As it seems to be getting more and more touchy.
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Old 09-30-2012, 09:46 PM   #4
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My 03 sport does the same thing but mine is a 5sp I know reverse is not synchro so I think the sliding collar on the main shaft of the tranny is wearing out sometimes as I let the clutch out it pops then other times the clutch will be out fully and then it pops
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Old 10-01-2012, 07:28 AM   #5
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TSB NUMBER: 21-006-05
GROUP: Transmission
DATE: February 24, 2005

This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retreival system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of DaimlerChrysler Corporation.
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. DO NOT ORDER PARTS OR
PERFORM ANY ACTIONS RELATED TO THIS BULLETIN UNTIL MARCH 07, 2005.
SUBJECT:
NSG370 6-Spd Transmission - May Not Remain In Reverse Gear When Selected
OVERVIEW:
This bulletin involves replacing both the internal shift subassembly and the mainshaft
reverse gear components.
MODELS:
2005 (KJ) Liberty / Cherokee
2005 (TJ) Wrangler
NOTE: This bulletin applies to vehicles equipped with a NSG-370 6-speed manual
transmission (sales code DEH).
SYMPTOM/CONDITION:
Upon shifting the 6-speed manual transmission into Reverse, the customer may notice that
reverse gear may not remain engaged.
This condition may follow/develop shortly after an accidental mis-shift into reverse has
occurred. While the vehicle is moving forward and already in a forward gear, instead of
shifting into another forward gear the reverse gear is incorrectly selected. Though reverse
can not be obtained during the mis-shift attempt, damage to the internal shift subassembly
and reverse gear may occur which may later prevent full reverse gear engagement when
reverse is selected properly. The customer should be made aware of proper shift
procedures.
This condition may also occur if the center floor console and/or shifter boot are not
positioned properly.
DIAGNOSIS:
1. Verify that the center floor console and shifter boot are not preventing the transmission
shifter from fully engaging reverse. Verify that the console is centered properly to the
shifter. Verify that the shifter boot is installed properly.
2. If the center console and shifter boot are properly installed, and the transmission fails
to remain in reverse as designed, perform the Repair Procedure.
NUMBER: 21-006-05
GROUP: Transmission
DATE: February 24, 2005
PARTS REQUIRED:
Qty. Part No. Description
1 05175903AA Kit, Reverse Gear - 4x4 or 4x2 (inc. internal
shift subassembly, reverse gear, reverse
syncrho sleeve, reverse blocker ring,
retaining snap rings, oil seals, and counter
shaft seal plug )
1 04318083 Mopar® Gasket Maker
2 04874464 Lubricant, Mopar® Manual Transmission
(MS-9224)
SPECIAL TOOLS/EQUIPMENT REQUIRED:
9648 Mainshaft Build Fixture
9633 Build Fixture
NPN 3-Jaw Puller
W-262 Hub Installer
NPN Hydraulic Press
9638 Seal Installer
9635 Seal Installer
9636 Shaft Remover and Installer
7829-A Plug Installer
C-4171 Handle
6448A Bearing Installer - Tube
REPAIR PROCEDURE:
Replace the manual transmission internal shift subassembly and reverse gear
components. Refer to detailed disassembly and assembly repair procedures in
TechCONNECT which are available in Group 21 - Transmission and Transfer Case /
Manual Transmission - NSG370.
POLICY:
Reimbursable within the provisions of the warranty.
21-006-05 -2-
TIME ALLOWANCE:
Labor Operation
No:
Description Amount
21-00-03-98 Replace Manual Transmission Internal Shift
Assembly And Reverse Gear Components - TJ
3.9 Hrs.
21-00-03-98 Replace Manual Transmission Internal Shift
Assembly And Reverse Gear Components - KJ
3.6 Hrs.
21-00-06-60 Optional Equipment:
4x4 Equipped - KJ
0.8 Hrs.
FAILURE CODE:
J1 Jumps Out Of Gear
-3- 21-006-05
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Old 10-01-2012, 09:44 AM
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@dontpanic wow! Thanks. That is exactly what I needed.
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Old 10-01-2012, 08:57 PM   #7
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I have a 2006 NSG370 and it does that too...just have to deal with..i've noticed that if i put it in first and roll forward about a foot before i go into reverse..it usually never pops out..just a trick that works for my jeep...guess it moves the splines a bit and allows it to get in gear easier..i dunno
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Old 04-03-2013, 08:22 AM   #8
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Can anyone tell me what the approx repair cost is? Im having this problem and mine will not go into reverse at all
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Old 04-03-2013, 09:12 AM   #9
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I was quoted 1300 to repair a bad fourth gear so would think it would be close in price? But I just got rid of it and put a 5 speed in and never looked back!
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Old 03-09-2016, 12:29 PM   #10
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So my reverse engagement issues have made it impossible to ignore the issue any longer. Ordered the MOPAR repair kit which has been updated and now costs $917 US or $1240 CDN.
WTF
But I need reverse so it's got to get done. The rest of the old beast is perfect.
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Old 03-09-2016, 01:36 PM   #11
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Quote:
Originally Posted by Slater451 View Post
I was quoted 1300 to repair a bad fourth gear so would think it would be close in price? But I just got rid of it and put a 5 speed in and never looked back!
I love the 6 speed but for the cost to fix it vs. the cost of a fully reman'd 5 speed it makes no sense. I have the same issue with reverse, theres even times where it is in gear and running then kicks itself out. No fun and cause for poo coming out.
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Old 03-17-2016, 07:23 PM   #12
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Picked up my 2005 with the reverse rebuild kit. The tranny shifts like new in all gears and reverse is not a scary proposition any longer. Put in a new LUK clutch which appears to be the right timing since the friction material was close to being worn down to the rivets. Amazon listed a wrong LUK flywheel that will have to go back so I had the OEM flywheel machined. The results are fantastic. Love the TJ all over again.
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Old 09-21-2016, 08:08 PM   #13
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So what was the total cost for the upgrade? I have a new-to-me 05 LJRU 6 spd that is not on the road yet. I did test drive it but I'm not sure if I tested reverse (should have done more research on 6 spd). It's currently up on jack stands in my driveway. I guess I should test out reverse. Has anybody installed the kit? Is it doable without a bunch of special tools? It sounds like it's a decent transmission with the reverse upgrade. I like the advantages of a 6 speed for on-road travel but need a reliable reverse.
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Old 09-24-2016, 07:08 AM   #14
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So in 05 they had and issue with shift fork fixed in 06. I had an issue with the jeep hoping out of first. Slamming i mean and reverse wouldn't hold. I had it rebuild wound up being bad syncros. Previous owner had records of fluid changes. Cost so much money had to replace first and reverse gear. Your probably going to have to replace reverse. It only had 80k on it when i rebuilt it smh. Another mopar engineering fail.
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Old 03-02-2017, 05:26 PM   #15
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Anybody gotten by with this problem by doing the slow clutch release thing indefinitely, or did everyone knuckle under eventually and get the kit or swap out their transmission?
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Old 03-04-2017, 11:49 AM   #16
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Quote:
Originally Posted by SparkieWWJKU/TJ View Post
Picked up my 2005 with the reverse rebuild kit. The tranny shifts like new in all gears and reverse is not a scary proposition any longer. Put in a new LUK clutch which appears to be the right timing since the friction material was close to being worn down to the rivets. Amazon listed a wrong LUK flywheel that will have to go back so I had the OEM flywheel machined. The results are fantastic. Love the TJ all over again.
So $970 for parts, $450 for labor (3.9 Hrs X $115) = $1420 for the Trans + what you spent on the Clutch (which needed it). Did they machine the clutch flywheel properly ? I understand it is a slight conical to it.
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Old 03-26-2017, 06:01 PM   #17
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So I've done the deed, $1,649 total. Anybody know if this will last, work indefinitely or if it will wear out again at some point in the future?
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Old 03-27-2017, 06:11 AM   #18
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A new ax-15 will fix it long term and the brand new tranny cost is also about 1600 dollars

Plus you get more overdrive then with the six speed


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Old 04-02-2017, 07:11 PM   #19
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Originally Posted by Digger84 View Post
A new ax-15 will fix it long term and the brand new tranny cost is also about 1600 dollars

Plus you get more overdrive then with the six speed
Do you know if the AX-15 will mate with the NV241, or does it need an adapter?
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Old 04-04-2017, 07:51 PM   #20
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It is a tj rubicon case it should bolt together fine but the transfer cases that were fitted to automatic have a longer input gear as was also true on auto vs manual 231 transfer case


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Old 04-04-2017, 08:05 PM   #21
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I have been looking at going from the six speed to the ax-15(mine currently has 120,000miles and has started a slight grind into third) the only info I cannot find is how does the mount work on the skid plate with this swap? Use the ax-15 mount? Or the nsg370 mount?
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Old 04-05-2017, 05:34 PM   #22
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Biggest issue is you have to keep 05-06 flywheel and properly mount crank angle/position sensor


http://www.wranglerforum.com/f210/ns...1840642?page=1



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Old 04-05-2017, 05:37 PM   #23
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http://www.advanceadapters.com/produ...llhousing-kit/


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