6in lift will i have to get a aftermarket driveshaft

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Hess

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I was also wondering the same thing.. But I have no idea which t case I have.. What's the easiest way to find out?
 

Butch

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If your 4x4 select is...
  • on the floor you have a NP241
  • electronic and on the dash you have a NP243
  • but, in '98 GM introduced Autotrac which will automatically engage 4x4 if you lose traction, this is the NP246 and if you have it you will need a new front driveshaft but many kits offer a new driveshaft that you can also buy when you buy your lift kit.

It won't hurt anything on a 6" lift any higher and you would need a new driveshaft but there are many shops that can extend your current shaft out.
 

Sully

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If your 4x4 select is...
  • on the floor you have a NP241
  • electronic and on the dash you have a NP243
  • but, in '98 GM introduced Autotrac which will automatically engage 4x4 if you lose traction, this is the NP246 and if you have it you will need a new front driveshaft but many kits offer a new driveshaft that you can also buy when you buy your lift kit.

It won't hurt anything on a 6" lift any higher and you would need a new driveshaft but there are many shops that can extend your current shaft out.

THANK YOU!!!!!!!!!!!!! I have been wondering what the hell autotrac is but havent cared enough to look it up or ask. You sir saved me some digging around while looking up info i needed anyway.
 

chevyon22s

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Yeah man thank you i've always wondered what t-case i have but like 97heavyhalf just never looked it up
 
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