Need help with front driveshaft for my '91 Blazer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Hoods69BadBowTie · 05-07-2008, 06:33 AM

All right I got another truck I know I need pics I will get them up later this week. The one major problem is I need a front driveshaft. I was told '73-'87 Chevy and gmc truck and '73-'91 Suburban as well as '73 and up full size blazer driveshafts will work is this true? I know I need to measure to be sure I just want to know all what ones would work. Thanx for any help and input!

rcbildr · 05-09-2008, 06:06 PM

Not entirely. I think you will have better luck if you can find one from an 80ish and newer Blazer/Suburban/Truck.

The front driveshafts are different lenghts based on what type of tranny & transfer case you have. Also, how the front driveshaft bolts up to the output of the t-case can be different. I'm not sure when it changed, but the older ones are different.

My friend is in a similar situation with his 76 Blazer. Someone stole both of the driveshafts from it and I found replacements off a shortbed truck that had an SM-465/NP-203. The Blazer is SM-465 with an NP-205. I had the rear driveshaft shortened and was hoping the front would bolt up, turns out the front will need to be shortened too.

Hope this helps.

72 CustomCamper · 05-09-2008, 08:55 PM

Does the 91 have any lift? Is it an auto or stick? The t-case should be an NP241, pretty much the same as a NP208 but has an electronic speedo. You should be able to use a front shaft from any 4x4 pick up from 81-87 and any blazer or burb from 81-91...

Chuck

Hoods69BadBowTie · 05-11-2008, 06:34 PM

Yea thanks for the advice. I ended up getting one off a early 80's Blazer and it bolted right up so thats good.

05-07-2008, 06:33 AM	#1
Hoods69BadBowTie Chevys Kick A$$ Join Date: Jan 2005 Location: Zootown, MT Posts: 12,699	Need help with front driveshaft for my '91 Blazer All right I got another truck I know I need pics I will get them up later this week. The one major problem is I need a front driveshaft. I was told '73-'87 Chevy and gmc truck and '73-'91 Suburban as well as '73 and up full size blazer driveshafts will work is this true? I know I need to measure to be sure I just want to know all what ones would work. Thanx for any help and input! __________________ HOODS is what I answer too -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!

05-09-2008, 06:06 PM	#2
rcbildr Registered User Join Date: Sep 2000 Location: Gold Bar, WA Posts: 1,216	Re: Need help with front driveshaft for my '91 Blazer Not entirely. I think you will have better luck if you can find one from an 80ish and newer Blazer/Suburban/Truck. The front driveshafts are different lenghts based on what type of tranny & transfer case you have. Also, how the front driveshaft bolts up to the output of the t-case can be different. I'm not sure when it changed, but the older ones are different. My friend is in a similar situation with his 76 Blazer. Someone stole both of the driveshafts from it and I found replacements off a shortbed truck that had an SM-465/NP-203. The Blazer is SM-465 with an NP-205. I had the rear driveshaft shortened and was hoping the front would bolt up, turns out the front will need to be shortened too. Hope this helps. __________________ My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28 Last edited by rcbildr; 05-09-2008 at 06:07 PM.

05-09-2008, 08:55 PM	#3
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	Re: Need help with front driveshaft for my '91 Blazer Does the 91 have any lift? Is it an auto or stick? The t-case should be an NP241, pretty much the same as a NP208 but has an electronic speedo. You should be able to use a front shaft from any 4x4 pick up from 81-87 and any blazer or burb from 81-91... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

05-11-2008, 06:34 PM	#4
Hoods69BadBowTie Chevys Kick A$$ Join Date: Jan 2005 Location: Zootown, MT Posts: 12,699	Re: Need help with front driveshaft for my '91 Blazer Yea thanks for the advice. I ended up getting one off a early 80's Blazer and it bolted right up so thats good. __________________ HOODS is what I answer too -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.