GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

AWD Sierra Denali going 80e... HELP!

Old Feb 19, 2013 | 03:57 PM
  #21  
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Originally Posted by hog
What truck is this part for? What application had AWD with the 4l80e?

Thanks
Hog
None, thats whey they are a PITA to get. You have to machine a stock one so that it fits the 80e output shaft. You can get a 80E output shaft machined down to fit the coupler but then that is the weakest link.
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Old Feb 19, 2013 | 04:01 PM
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Yes. It's a fairly simple swap. For the transmission mount. I got a 1/4" 4x4" angle steel from a scrap yard and had a trend weld it to the xmember. Then drill the holes for the mount to go through. For the vss that you have to wire in I used 16ga speaker wire. I used a stock 2500hd drive shaft and had my rear shaft shortened 1.6" and high speed balanced. The shop here in town did it in about 6 hours.
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Old Feb 19, 2013 | 04:47 PM
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Originally Posted by twolow02fransen
when you get ready to do the swap ill lend a hand rob should be a weekend project as long as we have everything we need
Thanks Kurt that's going to be a huge help. I'm making sure I have literally everything A-Z. I already have both driveshafts and the crossmember etc. the only 2 parts I need are this input gear and a converter.
Originally Posted by AndysC3
I should have my org input shaft somewhere. Pm time2kill if he can do it and ill sell it to you fairly cheap
Thanks Andy. I may take you up on that.
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Old Feb 19, 2013 | 05:00 PM
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do you have the correct vss sensor? I thought I did but ended up being the wrong one. Make sure you have enough trans fluid. and get the blue autotrac fluid for the transfer case.
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Old Feb 19, 2013 | 05:34 PM
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Originally Posted by AndysC3
do you have the correct vss sensor? I thought I did but ended up being the wrong one. Make sure you have enough trans fluid. and get the blue autotrac fluid for the transfer case.
I think I do. I'm getting it as a complete package. I will be starting a thread soon to cover it all and to make sure I have everything I need. At this point there are a lot of guys that have done this before and I'll need as much input as I can get. I know its not that big of a deal... but it still has me nervous.

I'm also nervous that its gonna make my truck feel like a turd off the line.
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Old Feb 19, 2013 | 07:25 PM
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With the converter it's not bad at all. I was getting 1.80 60' at the track.
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Old Feb 19, 2013 | 10:08 PM
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but you have boost and 4.56 gears... those sound like game changers to me. Granted you are also running taller tires, but still. I would think even with a stall thats slightly too tight for your cam the boost will more than make up for that. If I could click off a 1.80 I'd be ecstatic. Thats where I need to be to run times I'll be happy with I think.
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Old Feb 20, 2013 | 01:19 PM
  #28  
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Originally Posted by AndysC3
Yes. It's a fairly simple swap. For the transmission mount. I got a 1/4" 4x4" angle steel from a scrap yard and had a trend weld it to the xmember. Then drill the holes for the mount to go through. For the vss that you have to wire in I used 16ga speaker wire. I used a stock 2500hd drive shaft and had my rear shaft shortened 1.6" and high speed balanced. The shop here in town did it in about 6 hours.
Seriously, You used Speaker wire???
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Old Feb 20, 2013 | 01:22 PM
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Yes. It works great. Just need something to send the signal to the PCM
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Old Feb 20, 2013 | 01:54 PM
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I will definitely need help when it comes to the electric hook up to make this work properly. I've never been one for electronics of wiring...
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