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4l60e 4x4 to 2wd

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Old 11-07-2010, 10:06 PM
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Default 4l60e 4x4 to 2wd

Hi,
I did a search on this matter and I saw the few posts there are on the subject.
Short story, I bought a 4.8 with the 4l60e from a 1999 truck. It was a 4x4 but missing the transfer case. I thought I only had to change the tailshaft to use it as a 2wd application but I see I got to open the transmission and change the output shaft as well.

Right now I have much more time on my hands than money.

DOes anyone know where I can find a thread on how to open and reassemble a 4l60e?
I'd like to put that combo in a 1987 CAdillac Brougham and I have been told by a helpful member of this forum that I should use the tailshaft from a 700r4 in order to be able to use a speedometer cable. WHat years should the 700r4 be from?

Is the output shaft from a 700r4 2WD the same as the one on a 4l60e 2wd?

Does it take any special tools to do this job?

Thanks in advance
Old 11-08-2010, 09:45 AM
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There is no 700R4 tail housing that will bolt to a 1999 4L60E.
The tail shafts are not exact but will interchange.
Old 11-08-2010, 10:24 AM
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there is a $500 adapter kit required to make the trans tailhousing control both pcm and mechanical speedometer

it's not as simple as a tailhousing
Old 11-08-2010, 12:06 PM
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Thanks for answering,

So let me see if I understand correctly.

If I plan on keeping the 4l60e, I have to buy a tailhousing from a 4l60e, tailshaft from a 700r4 and also that 500 dollars electronic gizmo in order for the PCM to work. If this is right then it it way too expensive for my budget.

My other choice is to find a 2WD transmission for cheap.

Final choice would be to keep the transmission in the car (th200r4 I believe) and adapt it to the engine. I read I have to attach the kickdown cable to the engine in one war or another. What else is there involved? If there is nothing major involved I would like to go that route since the transmission only has 75000 miles vs. 150000 miles for the 4l60e. The 4l60e has also black oil in it. The transmission on the car was very well maintained.
If I keep that transmission will it be able to take the torque of the engine? The engine will be kept stock, maybe eventually add a better cam and headers but I would doubt it.
Old 11-08-2010, 01:54 PM
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I'd use a 4L60E tailshaft, I just said 700 because you refered to one, didn't know if you already had one or not.

The 200-4R's can be built pretty strong, but are weak in stock form. For the tv cable you could check out bowtie overdrives or http://www.tvmadeez.com/
Old 11-08-2010, 02:02 PM
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For the speedo on a 4L60E swap vehicle you'd need a kit like this so the pcm would get the vss and a mechanical speedo cable gets a drive gear.

Old 11-08-2010, 08:41 PM
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Going back to the from 4x4 to 4x2 question: I have 6.0L engine with a 4L65E 4x4 and want to make it 4x2 for a conversion, also I have a 4L60 laying in the garage, so instead of making the 4L65 4x2 I use the 4L60; can I use the same wiring and PCM? Would that be a bolt on and cable plug on change?
Old 11-08-2010, 08:56 PM
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Originally Posted by LSfan70s
Going back to the from 4x4 to 4x2 question: I have 6.0L engine with a 4L65E 4x4 and want to make it 4x2 for a conversion, also I have a 4L60 laying in the garage, so instead of making the 4L65 4x2 I use the 4L60; can I use the same wiring and PCM? Would that be a bolt on and cable plug on change?
What year is the 4L60E?
Old 11-08-2010, 09:17 PM
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Originally Posted by Jays_SSZ28
What year is the 4L60E?
'99 and the 4L65 is '03.
Old 11-08-2010, 09:25 PM
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I searched the price on that thing and it is really expensive for me right now. Besides it means I still have to open the 4l60e and swap output shafts. Given that the oil is black it might also need a rebuild.

Is the 200r4 in stock form strong enough to take the torque and power of the stock 4.8? After everything I read I would say no so it would need a rebuilt.
So the more I think about it, I would rather rebuild myself the 200r4 which is in good shape right now. I understand the big disadvantage is that I cannot change shift points easily, the pan has to be dropped right? Anything else I should know about?

In that case I would buy the kit to adapt the tv cable on the 4.8 and I eliminate the wires that would go from the PCM to the transmission. Is this right?

If later I decide to get more power from the engine can the PCM still be flashed?
Old 11-11-2010, 11:58 AM
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Can I use the transmission from a 1999 camaro? Is there anything that won't fit? Will it work ok with the computer from the truck?
Do i have to change torque convertors?



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