6L80 4WD to 2WD

[First c10]

Hey guys,

I have been looking into converting a 6L80E 4wd to 2WD from a 2011 silverado LC9/6L80E 4wd package I bought. I have research a bunch on here and LS1tech. This is what I have found or am planning on trying.
I am going to keep the short output shaft that is in the 4WD trans and install a camaro houseing extention(see picture).
I may have to get a larger tailshaft bushing and seal. I am using a 4L80 slip yoke. I will post pictures of the motor/trans.

Oh and this is for my son he is 15 1/2 and will get his permit this next week. I have been guiding him on the project as he is doing the work. Best thing ever for a young man to learn a skill and take pride in what he has. Iinstead of the damn video games!!!

Scott

[First c10]

Trans pic

[chevyguy_72]

The camaro housing has a non slip tail shaft... the so you might run into an issue there... the trans, drive line and center section are all solid on camaro while the slip movement is in the axles...
There is a full conversion for 4/Awd transmissions to 2wd. It involves pretty much removing all component and changing the output shaft and a different rear housing...

[First c10]

I agree there maybe an issue. I have a 2 piece drive line so in a sense it will be just like the camaro. I am not sure if it will work but I am trying nice I don't want to tear the trans apart.
Thanks for the comments

[chevyguy_72]

Originally Posted by First c10

I agree there maybe an issue. I have a 2 piece drive line so in a sense it will be just like the camaro. I am not sure if it will work but I am trying nice I don't want to tear the trans apart.
Thanks for the comments

Your 2 piece driveshaft has a pivot point...
but not a slip shaft...
you would have to purchase one with a slip shaft similar to this one Hart Rod bought to use the camaro output shaft...
http://67-72chevytrucks.com/vboard/s...358692&page=46

[First c10]

I guess I have a question. What would be the difference between what I have now on the truck it has a 350/700r4 and 2 piece drive line and the slip yoke on a 6l80?

[chevyguy_72]

Originally Posted by First c10

I guess I have a question. What would be the difference between what I have now on the truck it has a 350/700r4 and 2 piece drive line and the slip yoke on a 6l80?

If you convert to the camaro rear housing there is no slip yoke... its a solid mount... you have to get a drive shaft with the slip shaft built in...

if you convert to a 6l80 truck rear housing and shaft then you will have a slip yoke.

[First c10]

Ok so a camaro housing will not support a slip yoke? According to the cad drawings the bushing and seal are the same just the length of the housing is shorter on the camaro than the truck. Since my drive line is mounted in the center with a carrier bearing there should not be any slipping going on in the trans technically!

[Hart_Rod]

http://ls1tech.com/forums/automatic-...nvert-2wd.html

http://www.chevelles.com/forums/show...=271282&page=2

[First c10]

Thanks for the links Hart_Rod I have looked over all of them quite a few times.

ok for a few bucks I am going to try this. I am going to use a 4WD 6L80E, a 24226788 trans case extention from a camaro, and a 4L80E 6" long slip yoke and see if I can make it work.

if i can that would save a lot of money and help a lot of us out..... or not! but what the hell I will almost try anything once!!!

[First c10]

So I received the tail shaft housing for a Camaro. It fits perfectly just need to remove the seal for the 4wd output shaft in the transmission and remove the 2 small freeze plug looking plugs to allow ATF to flow around the tail shaft up to the yoke seal. Since I have a 2 piece driveline with a stationary mounted driveline. I will be taking pictures when I can. Does anyone know how or how hard it will be to remove the little freeze plug looking plugs at the rear of the transmission?

[Hart_Rod]

Originally Posted by First c10

So I received the tail shaft housing for a Camaro. It fits perfectly just need to remove the seal for the 4wd output shaft in the transmission and remove the 2 small freeze plug looking plugs to allow ATF to flow around the tail shaft up to the yoke seal. Since I have a 2 piece driveline with a stationary mounted driveline. I will be taking pictures when I can. Does anyone know how or how hard it will be to remove the little freeze plug looking plugs at the rear of the transmission?

Post pics.

[chevyguy_72]

Originally Posted by hart_rod

post pics.

x2

[First c10]

I will try and take pictures as I go. Not sure but I think it will work.

[First c10]

Ok this will take a little bit as I am doing it when I get time. The attached photo is of the rear of the transmission with the transfer case adapter removed. The little 1/2" freeze plug type plugs on the top and bottom will be removed to allow trans fluid to move in and out of the tail housing. In te photo I have already removed the rear seal.

[First c10]

Ok so I drilled a small hole in the small plugs and put a screw in it and removed the plug with a slide hammer. Was a little tough but got it.

[First c10]

Here it the long screw I tried first. But after I got them out I forgot to take more pictures until after the housing was put on and torqued.

[First c10]

Here us the tail housing on. Next will be the yoke and the drive line. Will update when I get to it.

[Hart_Rod]

Updates?

[First c10]

Well I have the motor and trans In the truck. Been working on the wiring etc. I plan to work on the drive line in the next week or 2. I will take a few pictures and post. As soon as I can.
Thanks for reminding me about this thread.
Scott

[akdg87]

im curious if that adapter would work on a 4wd 4l80e, they are plentiful up here, this would be an awesome alternative

[chevyguy_72]

any update?

[First c10]

I just got the drive line back and got it painted. I will be fitting it tonight if I get off early enough. had to had 4 inches to the front drive line. sorry about the delay in updates. Just trying to get everything else done while waiting for parts

[First c10]

Ok so I got the driveline lengthened and painted. I installed it with the 4l80/th400 short slip yoke (4-1/2") I bought. I had to have the driveline lengthened by 4".
I will post additonal pictures as I was running late when I took these.

[First c10]

2nd of 4 pictures