Hooking 4l80e to np205 transfercase

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79crewcab

Junior Member
Joined
Aug 28, 2022
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Location
Butterfield
First Name
Trevor
Truck Year
1979
Truck Model
K20 crew cab
Engine Size
6.0l LS
Has anyone used this kit from advanced adapters im wondering what else im going to need to make this work with the lq4 6.0l and 4l80e trans do I need a speedometer adapter for the back of the transfercase also?
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Red 1

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Apr 10, 2011
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445
Location
Paso Robles
First Name
Rick
Truck Year
89,90,80,75
Truck Model
K5,K10,C20,C30,K30
Engine Size
327,350,454,6.0
I used a 2wd 4l80E and the nothwest fab spacer. With the 2wd tranny you don't need the speed sensor in that adapter you just have to cut the out put shaft on the tranny. my tranny came out of a 2003 2500 GMC with a 6.0
 

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