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04-26-2005, 03:26 AM
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#1 |
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Registered User
Join Date: Apr 2005
Location: Gresham, OR 97080
Posts: 499
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Drive shaft Question
My Blazer has 3/4 ton axle conversions with a 4" suspension lift and I believe the original drive shaft (slip style) anyone with a 4" lift replace their Drive shaft or were you able to stay with the original?
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1971 Chevy Blazer CST 4X4 2012 Camaro 2SS/RS 2007 Avalanche 4X4 |
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04-26-2005, 05:39 AM
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#2 |
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Registered User
Join Date: Oct 2003
Location: Central Vermont
Posts: 8,537
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I had my rear shaft lenthened some, can't remember the exact amount but I know it was worth doing. Sorry, it was several years ago...
 Check to see how much spline you've got showing outside of the yolk, go from there. O/T, take a minute to fill in your location/where your from.  Welcome to the board.  
Last edited by vtblazer; 04-27-2005 at 06:05 AM. |
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04-26-2005, 06:11 PM
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#3 |
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Registered User
Join Date: Apr 2005
Posts: 41
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Mine with the lift has a double cardigan drive shaft and a small t-case drop but i dont know if the drive shaft is original.
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04-26-2005, 06:35 PM
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#4 |
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The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,468
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2 THE BOARD FROM WEST 10-UH-C 
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Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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04-26-2005, 07:52 PM
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#5 |
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SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,038
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First, welcome from Seattle.
From what I've read, a 4" lift is usually borderline for needing the drive shaft lengthened. Your 3/4 ton axles may have changed the dimensions and angles enought that it may be necessary. I don't think it is very expensive, and if you are going to be out 4x4ing, you might want a little more insurance so you don't get stuck out in the woods. Post some pics of your rig when you get a chance. We all like to see pictures of new members Blazers!
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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04-26-2005, 09:28 PM
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#6 |
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Registered User
Join Date: Apr 2005
Location: Gresham, OR 97080
Posts: 499
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Thanks for the warm welcome everyone! I will get some pics up soon. I am almost at the paint stage for my truck I just put the engine back in it and gonna try and get her started tonight.
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1971 Chevy Blazer CST 4X4 2012 Camaro 2SS/RS 2007 Avalanche 4X4 |
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04-27-2005, 02:24 AM
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#7 |
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Registered User
Join Date: Apr 2005
Location: Gresham, OR 97080
Posts: 499
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SUCCESS!!!
 After 2 years I am most excited to say IT'S ALIVE! got her running again tonite and she sounds awesome! I'll post some pics tomorrow.
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1971 Chevy Blazer CST 4X4 2012 Camaro 2SS/RS 2007 Avalanche 4X4 |
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04-27-2005, 10:19 AM
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#8 |
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Post Whore
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
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Congrats on getting her running - that is always a big step.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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04-27-2005, 11:37 AM
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#9 |
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SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,038
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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04-27-2005, 02:34 PM
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#10 |
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Registered User
Join Date: Apr 2005
Location: Gresham, OR 97080
Posts: 499
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Ok I finally got some pics
chevy 350 rebuilt with edelbrock cam and lifter set, Alum roller rockers, gear drives and Performer EPS permastar intake, edelbrock 600cfm (gonna try a 750cfm see if it's better might be to much). then my new 2004 Acura leather heated elec seats I got for $450 for set then my 2" suspension lift with new poly bushings
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1971 Chevy Blazer CST 4X4 2012 Camaro 2SS/RS 2007 Avalanche 4X4 |
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04-27-2005, 03:01 PM
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#11 |
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SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,038
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Looks nice. I like the seats!
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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04-27-2005, 06:13 PM
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#12 |
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Registered User
Join Date: Mar 2005
Posts: 28
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I admit Im new to this stuff so I may be wrong, but that's a body lift, not a suspension lift... right?
That motor looks sweet. Last edited by audioholic; 04-27-2005 at 06:13 PM. |
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04-27-2005, 07:17 PM
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#13 |
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Registered User
Join Date: Apr 2005
Location: Gresham, OR 97080
Posts: 499
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Yes that pic is of the 2" body lift. I do have a 4" suspension lift as well. My bad I see I typed it wrong I was in a hurry.
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1971 Chevy Blazer CST 4X4 2012 Camaro 2SS/RS 2007 Avalanche 4X4 |
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04-27-2005, 08:43 PM
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#14 |
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Check out GMTrucks.org
Join Date: Sep 2003
Location: Boise, Id
Posts: 284
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I stayed 1/2 ton with a 4 inch lift and had to have both my front and rear shafts lengthened. The guy rebuild the CV in the front, balanced, and put in all new spicer joints also and it was under $300.
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04-28-2005, 04:23 AM
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#15 |
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Registered truck nut
Join Date: Dec 1999
Location: Mt. Vernon, Washington, USA
Posts: 1,584
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I ran my stock drive shaft for years with a 4" lift. Then went 3/4 ton running gear and had a new driveshaft made that'll hold the bigger u-joint without buying the conversion u-joint. The driveshaft is the same diameter and as strong as the 1 ton version. Now my K5 is sitting on 11" of total lift, 1 ton running gear and I'm in the market for a longer driveline. I'm going to have to have HIGH ANGLE DRIVELINE make me a new one with double universal joints. You can have my old one for $100 plus shipping. I say it has less then 5K miles on it
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MOUNT VERNON, WASH. STATE Need a part? Just PM me |
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