Dana 20 Transfer Case - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rsavage · 01-07-2018, 01:51 PM

I have been cleaning and rehabbing parts for my 69 Blazer project while its shell is having body and paint done. Cleaned off 48 years of gunk on the Dana 20 transfer case. It will need gaskets and seals, but from what I can see so far, it is in good shape. Someone has been in it before as there is some blue rtv visible on the oil pan, but it was a good while ago.

**A1971Blazer** · 01-07-2018, 08:06 PM

20 is a decent case....much lighter than a 205 and slightly lower ratio @ 2.03:1

rsavage · 01-07-2018, 08:19 PM

That's what I have read - no previous personal experience. Compact and strong so they say.

**1rippen6** · 01-09-2018, 10:46 AM

The last blazer I bought had the 3 spd. with dana 20, it also was equipped with the skid plate. The skid plate is gone but the extra crossmember is there 50 plus shipping let me know if interested I can get some pictures.

rsavage · 01-09-2018, 11:08 AM

Quote:

Originally Posted by 1rippen6

The last blazer I bought had the 3 spd. with dana 20, it also was equipped with the skid plate. The skid plate is gone but the extra crossmember is there 50 plus shipping let me know if interested I can get some pictures.

This was originally a 6 cylinder but with an sm465 four speed. Not sure if an extra cross member would work with that drive line set up? 69's could come with 2 or 3 different makes of transfer cases, and I have no idea of the differences in lengths, positions, and if different skid plates were involved. My old 71 Blazer with a NP 205 just had a factory skid plate bolted to the single cross member. So for now, I guess I am not interested. Thanks much for the offer though. Appreciate it.

**1rippen6** · 01-09-2018, 01:15 PM

No problem vin# says its a 6 cylinder 3 spd. but has a later V8 in it now.

01-07-2018, 01:51 PM	#1
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Dana 20 Transfer Case I have been cleaning and rehabbing parts for my 69 Blazer project while its shell is having body and paint done. Cleaned off 48 years of gunk on the Dana 20 transfer case. It will need gaskets and seals, but from what I can see so far, it is in good shape. Someone has been in it before as there is some blue rtv visible on the oil pan, but it was a good while ago. Attached Images __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

01-07-2018, 08:06 PM	#2
A1971Blazer Senior Member Join Date: Nov 2013 Location: East Tennessee Posts: 2,199	Re: Dana 20 Transfer Case 20 is a decent case....much lighter than a 205 and slightly lower ratio @ 2.03:1 __________________ 1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer .............

01-07-2018, 08:19 PM	#3
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: Dana 20 Transfer Case That's what I have read - no previous personal experience. Compact and strong so they say. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

01-09-2018, 10:46 AM	#4
1rippen6 Senior Member Join Date: May 2011 Location: Greencastle PA Posts: 6,799	Re: Dana 20 Transfer Case The last blazer I bought had the 3 spd. with dana 20, it also was equipped with the skid plate. The skid plate is gone but the extra crossmember is there 50 plus shipping let me know if interested I can get some pictures.

01-09-2018, 01:15 PM	#6
1rippen6 Senior Member Join Date: May 2011 Location: Greencastle PA Posts: 6,799	Re: Dana 20 Transfer Case No problem vin# says its a 6 cylinder 3 spd. but has a later V8 in it now.



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