transfer case trouble!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Illinois CST · 12-01-2003, 08:33 PM

I snapped off the output shaft of my transfer case, and I'm not sure what model it is or where to locate parts or a replacement. I know its not a NP 203, it has dana on the housing. Can you guys tell me what model it is, and what I can replace or fix it with? If it is a model 20, is it compatable with the jeep model 20's? My case is behind a 350 and a four spd manual, in a 70 blazer. Thanks in advance, Willie

Scrub · 12-01-2003, 08:38 PM

Which shaft did you break off? Front or rear?

I never heard of a dana case in a 70 chevy, But I don't know anything about blazers.

Illinois CST · 12-01-2003, 08:55 PM

It was the rear shaft-

tr-acer · 12-02-2003, 02:49 AM

there was dana 20 cases behind the 3 speed blazers. what you should have is a 205. is the output shaft broke or is the yoke? ive neverseen a output broke. how many splines does your have? i have a ton of 4x4 stuff let me know how many splines ill se if i can find one in my organised mess

Scrub · 12-02-2003, 12:24 PM

Hey Tr-acer,
You got a 32 spline front shaft and bearing cap etc in your cache?

tr-acer · 12-03-2003, 12:04 AM

i just found out you might have a dana 20 behind that 465. i ll find out what spline count those are and if the jeep 20 stuff is interchanceable.

*1tonswb* · 12-03-2003, 02:35 AM

I had the same t-case in my 69 blazer. It is a dana 20. Its odd that yours has a 4 speed because they only came behind 3 speeds (or thats what I thought). I called advance adapters years ago about this t-case and they said that it is on its own. Meaning there is no other t-case like it. They actually wanted to buy my case so they could do research on it. That was back in 1994 so Im sure things changed since then. Dont know if you could swap parts out of another dana 20 or not. If it was me Id put a 205 in it and be done.

12-01-2003, 08:33 PM	#1
Illinois CST Registered User Join Date: Sep 2003 Location: Venedy, IL Posts: 25	transfer case trouble!! I snapped off the output shaft of my transfer case, and I'm not sure what model it is or where to locate parts or a replacement. I know its not a NP 203, it has dana on the housing. Can you guys tell me what model it is, and what I can replace or fix it with? If it is a model 20, is it compatable with the jeep model 20's? My case is behind a 350 and a four spd manual, in a 70 blazer. Thanks in advance, Willie __________________ 1970 Blazer CST 350 700R4

12-01-2003, 08:38 PM	#2
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	Which shaft did you break off? Front or rear? I never heard of a dana case in a 70 chevy, But I don't know anything about blazers. __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

12-01-2003, 08:55 PM	#3
Illinois CST Registered User Join Date: Sep 2003 Location: Venedy, IL Posts: 25	It was the rear shaft- __________________ 1970 Blazer CST 350 700R4

12-02-2003, 02:49 AM	#4
tr-acer Registered User Join Date: Dec 2003 Location: northern california Posts: 12	output shaft there was dana 20 cases behind the 3 speed blazers. what you should have is a 205. is the output shaft broke or is the yoke? ive neverseen a output broke. how many splines does your have? i have a ton of 4x4 stuff let me know how many splines ill se if i can find one in my organised mess

12-02-2003, 12:24 PM	#5
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	Hey Tr-acer, You got a 32 spline front shaft and bearing cap etc in your cache? __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

12-03-2003, 12:04 AM	#6
tr-acer Registered User Join Date: Dec 2003 Location: northern california Posts: 12	dana t case i just found out you might have a dana 20 behind that 465. i ll find out what spline count those are and if the jeep 20 stuff is interchanceable.

12-03-2003, 02:35 AM	#7
1tonswb Account Suspended Join Date: Nov 2003 Location: Oregon Posts: 300	I had the same t-case in my 69 blazer. It is a dana 20. Its odd that yours has a 4 speed because they only came behind 3 speeds (or thats what I thought). I called advance adapters years ago about this t-case and they said that it is on its own. Meaning there is no other t-case like it. They actually wanted to buy my case so they could do research on it. That was back in 1994 so Im sure things changed since then. Dont know if you could swap parts out of another dana 20 or not. If it was me Id put a 205 in it and be done.



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