Defender Puma LS3-T6060-LT230 - Defender Source
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  #1  
Old March 22nd, 2017, 04:29 AM
Andrew Richmond
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Lightbulb Defender Puma LS3-T6060-LT230

I have been putting LS3-6L80E-LT230 packages into Range Rover Classis, Defenders and Discovery Series 2's.

I run a Land Rover Repair and Modifying shop in Australia Les Richmond Automotive. I have been contracted a job to install a LS3-T6060 (the GM 6 speed manual) into a 2013 Defender 90. I have no concerns doing this conversation but I haven't made the adapter as yet. Not a major issue as we have done our homework and will make one if required.

But before I go to all the trouble I would like to know if this combination has been done before. (I can't find anything)
If so who did it?
Do you know who made the adaption to the LT230.
I hear the name Nicholas Markiw mentioned a lot. Does he do one. If so can somebody pass his contact details my way.

If not I am looking forward to this conversation all the same.
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  #2  
Old March 22nd, 2017, 08:03 AM
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This is Nick. http://www.defendersource.com/forum/...arkiw-318.html

Seems like a strange choice of gearbox. The gearing is high and it is not used in any application with a transfer case.
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  #3  
Old March 22nd, 2017, 08:16 AM
Andrew Richmond
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In a way you are right. If I compare it to a 5 spd R380 1 st gear is roughly 3.3:1. The Tr6060 is 3:1. Just taller. This can easily be combatted by diff ratios 3.75,4.1,4.35 etc to get a better 1st gear and balanced top gear. Also remember if comparing it to a commodore the transfercase is a 1.2:1 reduction and the diffs are similar ratio of 3.7 Gm vs 3.54 LR. So it is lower geared than a commodore. This project is a road going vehicle and is a light 90. I think it will be fine without the diffs changed. But you are correct, a bit tall off the shelf. But bloody strong. I can't see any Land Rover boxes handelling this type of grunt.
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  #4  
Old March 22nd, 2017, 09:51 AM
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NV4500 might be worth a look.
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  #5  
Old March 22nd, 2017, 09:58 AM
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Quote:
Originally Posted by Andrew Richmond View Post
In a way you are right. If I compare it to a 5 spd R380 1 st gear is roughly 3.3:1. The Tr6060 is 3:1. Just taller. This can easily be combatted by diff ratios 3.75,4.1,4.35 etc to get a better 1st gear and balanced top gear. Also remember if comparing it to a commodore the transfercase is a 1.2:1 reduction and the diffs are similar ratio of 3.7 Gm vs 3.54 LR. So it is lower geared than a commodore. This project is a road going vehicle and is a light 90. I think it will be fine without the diffs changed. But you are correct, a bit tall off the shelf. But bloody strong. I can't see any Land Rover boxes handelling this type of grunt.
Could this be an option? ZF6

6-Speed ZF S6-650 transmission Swap - PerformanceTrucks.net Forums
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  #6  
Old March 22nd, 2017, 10:15 AM
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Quote:
Originally Posted by Andrew Richmond View Post
I can't see any Land Rover boxes handelling this type of grunt.
Nobody is suggesting a LR gearbox. The point being made is that a 6 speed designed for a 2WD car is not the best choice in the world. The gear ratios are tight and the back end is not intended to have a transfer case attached/

Lots of people use the NV4500, so nothing new needs to be developed. It really makes the most sense, IMO. The NV4600 is too large. ZF 5 speeds are commonly done on Cummins conversions. Truck 6 speeds will have packaging problems in a 90. If you were doing a 130, it is different discussion.
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  #7  
Old March 22nd, 2017, 12:00 PM
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Quote:
Originally Posted by Andrew Richmond View Post
I have been putting LS3-6L80E-LT230 packages into Range Rover Classis, Defenders and Discovery Series 2's.

I run a Land Rover Repair and Modifying shop in Australia Les Richmond Automotive. I have been contracted a job to install a LS3-T6060 (the GM 6 speed manual) into a 2013 Defender 90. I have no concerns doing this conversation but I haven't made the adapter as yet. Not a major issue as we have done our homework and will make one if required.

But before I go to all the trouble I would like to know if this combination has been done before. (I can't find anything)
If so who did it?
Do you know who made the adaption to the LT230.
I hear the name Nicholas Markiw mentioned a lot. Does he do one. If so can somebody pass his contact details my way.

If not I am looking forward to this conversation all the same.
Sweet keep us updated. Any pics/video of some of the work you have done in the past?
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  #8  
Old March 22nd, 2017, 12:02 PM
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Sweet keep us updated. Any pics/video of some of the work you have done in the past?
Les Richmond Automotive
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  #9  
Old March 23rd, 2017, 10:04 PM
Andrew Richmond
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At the end of the day the TR6060 is stronger than the T56 and is an excellent gearbox. Much better that most other options. Just because it hasn't been fitted before doesn't mean it shouldn't be done. Perfectly suited to the LS engines. It is irrelevant if the box is made for 2WD cars. You find these in the Corvette transaxle. We are used to resistance because we had the same feedback back in 2010 when we started installing the 6L80E autos. We are not afraid to pioneer things to build what we believe strongly will work the best. I'll post some pics later as we go through the excersize.
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  #10  
Old April 18th, 2017, 03:19 PM
Yusuf
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Hi Andrew,
How is the development going. I am keen with great interest.

Keep the good work up.

Reg.
Yusuf.
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  #11  
Old April 21st, 2017, 07:58 PM
Andrew Richmond
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I have been asked for an update on this project. So here it is.
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First we had to work out how to attach the transfercase to the gearbox. We imported a TR6060 transaxle casing from the states which gave us a perfectly flat adaptation surface.
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The risk was the internal bearings and sizes of shafts wouldn't match. Our local Holden dealer was a help here and bought in a TR6060 commodore extension housing so we could compare.
It is pretty well the same, so now we can order a trans package.
We found a 9500Km 2016 manual trans package for 11k. Couldn't go past this one with so low Km's. This will arrive in early May 2017.
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We have started on the adapter. We CAD designed the 2 mating plates in preparation for the gearbox to arrive. Once the box gets here we will replace the back case, work out the intermediate shaft and the spacer tube to go between the mating plates. We will degree the centres in the mill and weld the adapter together. I will up date this later.
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For the gearstick we have opted to use the top mount and bought a universal shifter kit. This should be in a similar position to the original gearstick.
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  #12  
Old May 10th, 2017, 01:06 AM
Yusuf
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Thanks Andrew. The development seems underway. Keep it up.
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