The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   The 1960 - 1966 Chevrolet & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=6)
-   -   Advice needed on Transfer case upgrade (https://67-72chevytrucks.com/vboard/showthread.php?t=570675)

cwolfe 03-14-2013 06:53 PM

Advice needed on Transfer case upgrade
 
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 03-14-2013 07:52 PM

Re: Advice needed on Transfer case upgrade
 
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
http://imageshack.us/a/img839/5352/i...1303111556.jpg
http://imageshack.us/a/img259/2688/i...1303111550.jpg
http://imageshack.us/a/img822/7092/i...1303111549.jpg

ron

cwolfe 03-14-2013 08:10 PM

Re: Advice needed on Transfer case upgrade
 
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 03-14-2013 09:05 PM

Re: Advice needed on Transfer case upgrade
 
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 03-14-2013 09:18 PM

Re: Advice needed on Transfer case upgrade
 
Fabricating a cap is not a bad idea. Did you also have to make the little passages for oil?

63chevy4x4 03-14-2013 09:27 PM

Re: Advice needed on Transfer case upgrade
 
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 03-14-2013 11:23 PM

Re: Advice needed on Transfer case upgrade
 
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.


Quote:

Originally Posted by cwolfe (Post 5947626)
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 03-15-2013 12:19 AM

Re: Advice needed on Transfer case upgrade
 
Quote:

Originally Posted by cwolfe (Post 5947456)
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 uphttp://i615.photobucket.com/albums/t...F566239F0C.jpg

61K10 03-15-2013 12:57 PM

Re: Advice needed on Transfer case upgrade
 
thats what gives them character-------and your dog knows when you are almost home.

aerotruk63 03-15-2013 01:25 PM

Re: Advice needed on Transfer case upgrade
 
https://lh6.googleusercontent.com/-0...766/image2.jpg

https://lh3.googleusercontent.com/-C...766/image3.jpg

https://lh3.googleusercontent.com/-p...033/image4.jpg

dieseldude4bt 03-15-2013 06:23 PM

Re: Advice needed on Transfer case upgrade
 
If it's loud there is a problem. I have had one for 30 years (2 diffenrent cases) and they don't whine.

padresag 03-15-2013 06:41 PM

Re: Advice needed on Transfer case upgrade
 
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 03-15-2013 07:03 PM

Re: Advice needed on Transfer case upgrade
 
The 1s, i have been in make a high pitch sound, click on picture above

aerotruk63 03-15-2013 07:03 PM

Re: Advice needed on Transfer case upgrade
 
Quote:

Originally Posted by padresag (Post 5949404)
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 03-16-2013 04:55 PM

Re: Advice needed on Transfer case upgrade
 
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 03-16-2013 05:00 PM

Re: Advice needed on Transfer case upgrade
 
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 03-17-2013 12:57 AM

Re: Advice needed on Transfer case upgrade
 
I don't think that SM465 is going to fit under a low hump floor.


Quote:

Originally Posted by cwolfe (Post 5951071)
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.



All times are GMT -4. The time now is 06:29 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com