Np205

[79crewcab]

Looking for information on finding np205 with 6 bolt round pattern and long input is there a year range or model to look for when trying to fine one?

 

[Strick]

Sounds like one for a TH400.

HS

 

[nvrenuf]

All 85+ GM 205’s are the round pattern, long input like you want but they were only used in 1 tons (but not all 1 tons).

84 and older tcases were figure 8 with a short input.

 

[79crewcab]

Thanks for the information if anybody knows of 1 around Minnesota let me know

 

[Bextreme04]

Thanks for the information if anybody knows of 1 around Minnesota let me know

They are rare and stupid expensive when you find them. What trans are you using? Looks like you have a 6.0 LS swap, did you put a 4L80 in with that? I just used a 3/4" adapter ring to convert the 4L80 index ring to a TH400 index ring size and then used a 6" long 2wd output shaft in my 4L80 cut down to the same ~4.75" long output as the TH400 it was replacing.

 

[SquareRoot]

Years ago I found a guy on another site that was selling NOS cases. He had a company that converted new trucks into emergency vehicles (ambulances, Fire Dept., etc.). He got out of the business and was selling off his stock. He had about a dozen NOS cases. I bought a brand new 6 bolt round case for $300. Pricey at the time but I was putting it behind a NV4500. In hindsight, I wish I'd bought every one he had for $300.

 

[79crewcab]

I have 2 79 crew cab 1 tons one is 4wd and one is 2wd I'm doing a ground up restoration on the 4wd at this time while doing 6.0l lq4 with a rebuilt by me 4l80e and was going to use the 205 for the gear drive due to running 35-13.5r22 don't wanna break a chain in a 241c and was going to use a advanced adapter spacer to adapt

 

[bucket]

I have 2 79 crew cab 1 tons one is 4wd and one is 2wd I'm doing a ground up restoration on the 4wd at this time while doing 6.0l lq4 with a rebuilt by me 4l80e and was going to use the 205 for the gear drive due to running 35-13.5r22 don't wanna break a chain in a 241c and was going to use a advanced adapter spacer to adapt

A 208 or 241 will hold up just fine with 35's, especially on the street.

 

[79crewcab]

I know the chain drives are strong but i plan on using as a tow rig and pull goose neck around the farm so a gear drive would be best for reliability just my opinion

 

[bucket]

I know the chain drives are strong but i plan on using as a tow rig and pull goose neck around the farm so a gear drive would be best for reliability just my opinion

It certainly isn't a bad thing to have a 205, but even for those uses, a 208 or 241 will be just fine. But if you want the 205 just to be safe, I ain't gonna argue. I'd be looking at doing the same thing, lol.

 

[79crewcab]

Well with months of searching I finally found my transfer case and now it's time to fab a cross member and lengthen and shorten driveshafts

You must be registered for see images attach

 

[SquareRoot]

Nice job finding one. Now's a good time to consider adding the Twin Stick mod. Your gonna need a shifter anyway, the Twin Stick is worth the effort. ORD has what you need.

 

[PrairieDrifter]

Nice job finding one. Now's a good time to consider adding the Twin Stick mod. Your gonna need a shifter anyway, the Twin Stick is worth the effort. ORD has what you need.

They haven't had their twin stick setup for a good while. I think it says it's coming back, but it's been some months for sure.

 

[Bextreme04]

Well with months of searching I finally found my transfer case and now it's time to fab a cross member and lengthen and shorten driveshafts

You must be registered for see images attach

Why the long adapter with the VSS in it? That's completely useless and will read exactly the same as the OSS in this case. You need either a switch to activate when in 4lo or the VSS on the output of the 205 in order for it to be doing you any good.

 

[bucket]

They haven't had their twin stick setup for a good while. I think it says it's coming back, but it's been some months for sure.

I thought that was just the 203 setup?

The JB Fab 205 twin stuck is pretty nice.