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10th May 2020, 12:07 PM
#1
GQ Automatic gearbox Differences
Gidday,
Does anyone know the differences between autos on the GQ Safari/Patrols?
I’m looking at swapping my broken auto from my 1990 factory turbo Safari for one out of a 1996 factory turbo?
Both trucks are TD42 T diesels.
I’m sure my truck has had a later model turbo motor installed but not sure about the gearbox.
Having a quick look at the gearbox’s the main wiring plug looks different? The older box has 8 wires where as the newer box has only 7.
This wiring plug comes out of the box from above the rear of the pan on the drivers side of the gearbox.
Any help is greatly appreciated
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10th May 2020 12:07 PM
# ADS
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10th May 2020, 05:46 PM
#2
Rotaredom
Try this thread mate, sorry can't help with the plug wiring issue sorry , maybe one of the gearboxes aftermarket upgrade that required an additional wire.
Can you get the model number of the gearboxes they should be stamped on the housing somewhere
http://www.nissanpatrol.com.au/forum...on-Differences
Look at post #7 day 7
Last edited by NissanGQ4.2; 10th May 2020 at 05:55 PM.
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10th May 2020, 05:54 PM
#3
Rotaredom
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11th May 2020, 05:10 AM
#4
Cheers for that. I’ll have a look and see if I can get the numbers.
The boxes themselves are identical, it’s just the one plug that’s different, as well as the plugs coming off the shifters.
Makes me wonder if the control units/computers are different also?
Will do some more investigating and have a good read up on your rebuild thread
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11th May 2020, 07:49 AM
#5
Patrol Freak
Might help if you post some pics. The later boxes have 8 wires: 5 for the 5 solenoids, 1 for the temp sensor & 2 for the temp switch.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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11th May 2020, 03:11 PM
#6
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11th May 2020, 03:15 PM
#7
These are the plugs I am talking about. The last 2 photos are of the gearbox that’s in the truck at the moment, 8 wires and the 2nd photo is of the newer gearbox plug, 7 wires, and where the wires come from the gearbox. The plug and wiring exits the same place on both gearboxes.
Also added a picture of the shifters side by side, the single plug shifter is off the newer gearbox
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11th May 2020, 06:08 PM
#8
Patrol Freak
Looks like someone has bridged the black & white temp sensor wires. Here’s a pic showing where the wires go inside the trans.
The 4 wires in the 2 plugs at the top of the pic go to the 4 solenoids on top of the valve body.
You can see the black & white wires that go to the temp sensor.
Pic is of a ‘99 TB45E trans.
...
7653312B-7F18-40B6-8E7E-F20AB8B7FD9B.jpeg
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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11th May 2020, 06:54 PM
#9
Would those wires being bridged allow to lock up to work sooner or is there another purpose to bridging them?
By looking at this picture I would assume that I can plug the new gearbox in without any dramas?
Really appreciate the help, not many transmission workshops are knowledgable on these gearboxes in my neck of the woods!!
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11th May 2020, 07:42 PM
#10
Patrol Freak
Might have been done because of a bad temp sensor not allowing lockup.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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