Transfer case ID - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevyman63 · 01-07-2008, 06:22 AM

Can anyone tell me how to identify which transfer case I have in my Blazer?

1969k10stepside · 01-07-2008, 06:26 AM

If it's stock it'll be a NP205.It'll look like the one below (mine)
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Chevyman63 · 01-07-2008, 06:41 AM

Thanks 1969k10stepside, I knew I could count on you guys and it only took 4 minutes for a response. Thanks again.

BTW, mine is definitely an NP205.

Critter · 01-07-2008, 07:06 AM

The little circular cover in the middle with 3 bolts gives it away that its a NP205. That't the easiest way to make a quick ID IMHO

Chevyman63 · 01-07-2008, 07:28 AM

Thanks Critter, I'll remember that.

**Yukon Jack** · 01-08-2008, 03:29 AM

Quote:

Originally Posted by Critter

The little circular cover in the middle with 3 bolts gives it away that its a NP205. That't the easiest way to make a quick ID IMHO

But remember the Rockwell T221 also has that little cover - I thought I had an NP205 when I first got my K20 after seeing those three bolts and cover

Chevyman63 · 01-08-2008, 04:06 AM

Thanks YJ, also good info.

Critter · 01-08-2008, 08:55 AM

Quote:

Originally Posted by Yukon Jack

But remember the Rockwell T221 also has that little cover - I thought I had an NP205 when I first got my K20 after seeing those three bolts and cover

true, I guess I should say the "FLAT" cover with 3 bolts...

You have a good point.

69TowRig · 01-09-2008, 01:33 AM

Quote:

Originally Posted by 1969k10stepside

If it's stock it'll be a NP205.It'll look like the one below (mine)

Not always the case. If it was stock with a 3-speed column shift it has a Dana 20 like mine does. NP205s came with the other transmissions.

**Yukon Jack** · 01-09-2008, 07:52 AM

And just to throw in some more confusion, my 70 K5 with a 4 speed originally had the Dana 20.

1969k10stepside · 01-09-2008, 10:38 AM

I think the older ones had the Dana but by 71 or so they had the NP205 with auto,manual,or 3spd.

01-07-2008, 06:22 AM	#1
Chevyman63 Can't wait to retire!! Join Date: Feb 2003 Location: Corunna, MI Posts: 1,575	Transfer case ID Can anyone tell me how to identify which transfer case I have in my Blazer? __________________ 2009 4x4 Chevy Crew Cab 6.0 1989 4x4 Siverado (270,000 miles) 1972 4x4 Blazer 2007 Chevy Cutaway 1 ton 1970 Corvette (sons project) RIP - CLR 10/11/09

01-07-2008, 06:26 AM	#2
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,020	Re: Transfer case ID If it's stock it'll be a NP205.It'll look like the one below (mine)

01-07-2008, 06:41 AM	#3
Chevyman63 Can't wait to retire!! Join Date: Feb 2003 Location: Corunna, MI Posts: 1,575	Re: Transfer case ID Thanks 1969k10stepside, I knew I could count on you guys and it only took 4 minutes for a response. Thanks again. BTW, mine is definitely an NP205. __________________ 2009 4x4 Chevy Crew Cab 6.0 1989 4x4 Siverado (270,000 miles) 1972 4x4 Blazer 2007 Chevy Cutaway 1 ton 1970 Corvette (sons project) RIP - CLR 10/11/09

01-07-2008, 07:06 AM	#4
Critter Future TOTM Winner Join Date: Aug 2006 Location: Bulverde, TX Posts: 2,692	Re: Transfer case ID The little circular cover in the middle with 3 bolts gives it away that its a NP205. That't the easiest way to make a quick ID IMHO __________________ 72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com

01-07-2008, 07:28 AM	#5
Chevyman63 Can't wait to retire!! Join Date: Feb 2003 Location: Corunna, MI Posts: 1,575	Re: Transfer case ID Thanks Critter, I'll remember that. __________________ 2009 4x4 Chevy Crew Cab 6.0 1989 4x4 Siverado (270,000 miles) 1972 4x4 Blazer 2007 Chevy Cutaway 1 ton 1970 Corvette (sons project) RIP - CLR 10/11/09

01-08-2008, 04:06 AM	#7
Chevyman63 Can't wait to retire!! Join Date: Feb 2003 Location: Corunna, MI Posts: 1,575	Re: Transfer case ID Thanks YJ, also good info. __________________ 2009 4x4 Chevy Crew Cab 6.0 1989 4x4 Siverado (270,000 miles) 1972 4x4 Blazer 2007 Chevy Cutaway 1 ton 1970 Corvette (sons project) RIP - CLR 10/11/09

01-09-2008, 07:52 AM	#10
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Re: Transfer case ID And just to throw in some more confusion, my 70 K5 with a 4 speed originally had the Dana 20. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

01-09-2008, 10:38 AM	#11
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,020	Re: Transfer case ID I think the older ones had the Dana but by 71 or so they had the NP205 with auto,manual,or 3spd.



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