Advice needed on Transfer case upgrade

[cwolfe]

Hello Guys, I gotta ask for some more advice. I have a 66 Chevy K10 with a straight six, muncie 318 3 speed manual, and a divorced Rockwell T221. I never liked the loud whine from the T221, so I wasn't too upset when a bearing cap cracked, and I wasn't able to find a replacement. From what I've read on the forum, a popular thing to do is to switch to the NP 205. I've been told to look for a transfer case from an 1100 or 1200 international truck, but that sounds incredibly difficult to find. I have the Dana 44 front end, so i need a passenger drop. On to my questions.
1) Would it be hard to find a divorced NP205, so I can keep my Muncie 318, and what models of vehicles should I look for to make sure it will work right? (I'm worried about rotation direction and such)
2) Would I be better off replacing my transmission also, so I could use a mated NP 205? I really don't want to get away from the three on the tree.
3) Any other ideas?
Thanks for taking the time to help out.

[padresag]

any early 70's light duty IHC (inc scouts) and dodges used a right hand drop independent 205. the dodge has weird yokes though. one should be able to take a r/hand drop from a married unit and gut it and put in everything from a left hand drop ford independent 205. it is just the case that is different. I would do a little research on that if you can't find a complete one. I know where there is an IHC one but it is a little ways from you
I have one of those caps that you need. I have a T221 with a toothache that I am going to take apart. UI am taking it apart for someone else here who needs some pieces. I may be able to help you if he doesn't need what you do.
sounds like your bearings wore out and the the shaft backed into that rear cap




ron

[cwolfe]

Thanks for your help. Yes, I think that's what happened. I rebuilt the case, and it seems like that bearing is sticking out to far. Probably did something wrong. Anyway, I don't want to spend more money on that transfer case that's so loud. I found an 87 Blazer with a granny 4-speed and married np205, so I'm thinking of going with that.

[63chevy4x4]

I had a cap break on the first T221 I had in my 63. I used the plasma cutter and made a flange and welded an 1 1/2 in pipe cap to it, worked great! If you didnt live so far Id love to take that rockwell off your hands!

[cwolfe]

Fabricating a cap is not a bad idea. Did you also have to make the little passages for oil?

[63chevy4x4]

I made mine for the upper white metal cap, I didnt make any holes but the hole for the shaft was just big enough to be over the outter race on the bearing, I didnt have any problems but maybe i got lucky!

[Captainfab]

The transfer case in a '87 Blazer will not be a 205 unless someone put one in it. I believe the original transfer case should be a 208. The 208 has an aluminum case, whereas the 205 is cast iron.

Originally Posted by cwolfe

Thanks for your help. Yes, I think that's what happened. I rebuilt the case, and it seems like that bearing is sticking out to far. Probably did something wrong. Anyway, I don't want to spend more money on that transfer case that's so loud. I found an 87 Blazer with a granny 4-speed and married np205, so I'm thinking of going with that.

[j.kirn]

Originally Posted by cwolfe

Hello Guys, I gotta ask for some more advice. I have a 66 Chevy K10 with a straight six, muncie 318 3 speed manual, and a divorced Rockwell T221. I never liked the loud whine from the T221, so I wasn't too upset when a bearing cap cracked, and I wasn't able to find a replacement. From what I've read on the forum, a popular thing to do is to switch to the NP 205. I've been told to look for a transfer case from an 1100 or 1200 international truck, but that sounds incredibly difficult to find. I have the Dana 44 front end, so i need a passenger drop. On to my questions.
1) Would it be hard to find a divorced NP205, so I can keep my Muncie 318, and what models of vehicles should I look for to make sure it will work right? (I'm worried about rotation direction and such)
2) Would I be better off replacing my transmission also, so I could use a mated NP 205? I really don't want to get away from the three on the tree.
3) Any other ideas?
Thanks for taking the time to help out.

yes they are a little loud i turn the radio up

[61K10]

thats what gives them character-------and your dog knows when you are almost home.

[aerotruk63]

[dieseldude4bt]

If it's loud there is a problem. I have had one for 30 years (2 diffenrent cases) and they don't whine.

[padresag]

I never heard either of my t/cases whine either, but then I couldn't hear the radio either over the Detroit diesel
ron

[j.kirn]

The 1s, i have been in make a high pitch sound, click on picture above

[aerotruk63]

Originally Posted by padresag

I never heard either of my t/cases whine either, but then I couldn't hear the radio either over the Detroit diesel
ron

That's funny Ron!

[cwolfe]

Thanks for the help guys. I fabricated a cap for the t221, and I bought the Blazer. I'm converting to a SM 465/NP208, and selling the Muncie 318 and T221.

[cwolfe]

I'm going to try to fit the SM465/NP208 under my low floor hump. Anyone know if it will work? I might have to cut an oversize hole.

[Captainfab]

I don't think that SM465 is going to fit under a low hump floor.

Originally Posted by cwolfe

I'm going to try to fit the SM465/NP208 under my low floor hump. Anyone know if it will work? I might have to cut an oversize hole.