Driveshafts, '79 GMC

45

Asked by Jun 25, 2008 at 05:59 PM about the 1979 GMC Sierra

Question type: Car Customization

I'm swapping a TH350 out of my 1979 GMC Sierra Grande.  It had a TH350 with a NP203 transfer case.  Now I will be putting a TH400 with another NP203.  Am I going to have to have new front and rear shafts made for it?  Or will the originals from the TH350 fit?

5 Answers

680

im pretty sure the old one ones will fit but you might want to double cheack with chevy...or at least google lol

575

i would go one a 4hweeling site and talk to some of them, i am thinking it will, but if the tailhousing on the transmission is longer than the th350 you are gonna need to get the front extended and the rear shortened. hope this helps ya on your project, good luck.

15

there is a web stie called www.73-87chevytrucks.com go there and ask any quesstion you want, plenty of knowledgable guys there

15

as long as both the 203s are the same they will work, there was a couple different types of 203s made with different housings

15

the website you are looking for is 73-87chevytrucks.net ..............................not .com

Your Answer

Sierra

Looking for a Used Sierra in your area?

CarGurus has 21 nationwide Sierra listings and the tools to find you a great deal.

ZIP:

GMC Sierra Experts

  • #1
    Js08016
    Reputation
    120
  • #2
    dandyoun
    Reputation
    110
  • #3
    John Saffrahn
    Reputation
    80
View All

Related Models For Sale

Used Ford F-150
2,539 Great Deals out of 195,752 listings starting at $1,500
Used Honda Accord
989 Great Deals out of 59,110 listings starting at $1,099

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.