1978 Jimmy Auto to manual hub question

[Phil513]

So At least I hit the search button and found this thread before posting again. I recently bought a 78 k5 and it has manual hubs so how would I tell if the t case has been converted? Do I have a driver slowly move it while I check the front drive shaft for movement?

If it moves and I assume the t case is still full time then that would tell me the t case is in the hi loc position. which hopefully not

if it does not move then that would tell me the t case has been converted and my options change to what exactly?

low loc = 4wd low

low = 2wd low

High = 2wd high

High loc = ??????

High Loc is still 4X4 high, but can't be driven on the street. If the transfer case has been converted, it doesn't have differential action in it anymore.

And yes, if you unlock the hubs and put it in high, and the front shaft doesnt turn, the Tcase has been converted.

 

[Phil513]

And to do the test, put in in High, not High Loc. High Loc will turn the front shaft with or without the conversion.