'76 np203

[coolpup32]

I'm sure its been asked before but I'm not getting the search results i'm looking for....


I have a 76 k10 with TH350 & NP203 transfer case. It has a part-time conversion from Rancho suspension installed. The chain is stretched, and at heavy acceleration or uphill, etc, it will slip or rub the casing making sounds. I've seen issues where the chain will bind and punch a hole in the case, yikes!

So my question is, how can i fix it? Of course the chains are no longer made and i'm afraid to purchase a used as it may be stretched as well. I've heard of a tensioner kit but cannot find one???

The NP205's are getting harder to find, so i'd prefer to fix this one, but if I find a deal on a 205, can someone confirm what i understand?

Parts needed for 205 conversion:

• Fig 8 bolt pattern
• drive shafts
• adapter plate for TH350