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02-02-2003, 08:07 PM
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#1 |
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Registered User
Join Date: Apr 2000
Location: Oneonta, NY, US
Posts: 103
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6 in. lift, is driveshaft long enough?
I have finally decided to lift my truck 6 in. and put 35's on it. I am going to use Skyjacker softride springs front and rear.
My only worry is if the front driveshaft will be long enough? Has anyone done this lift with my same setup (SM465/Rockwell)? Also what is the recommended width rim for 35x12.5 tires? Will stock rims work? What is the stock rim width? I now run 31x10.5x16.5 on my stock rims. Thanks for any advice.
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Jeff '69 GMC K2500 LWB, '74 350/SM465/Rockwell T-221, cnD44/ffD60, 3.73 gears, 31" BFG's (originally had 305ci V-6) '05 VW golf '84 HD Sportster XLX '68 GMC K2500 parts beast |
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02-03-2003, 12:13 AM
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#2 |
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Registered User
Join Date: Mar 2002
Location: Floodwood Minnesota
Posts: 1,057
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ditto
I did the exact same lift with the exact same products and i did not have to lengthen the front shaft. It would help a little but it is not necessary. good luck and post a pic when your all done....
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1967 K30 Napco 292/SM420 original paint 30k miles 1968 K60 Napco 396/5spd. dbl frame 52" michelins 1969 K10 SWB GMC 454/4spd 6" 35's posi,hooks 1972 C30 longhorn,BB/AT,A/C,Tilt,Toolbox,lokr 1987 K20 Chevrolet Suburban. 6" lift. 5.7L/TH400 1979 K60 GMC Coleman 4x4, 427/Allison. |
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02-03-2003, 09:08 AM
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#3 |
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No Brakes Club
Join Date: Jan 2003
Location: Carthage, N.C.
Posts: 263
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I did the exact lift on my 85 GMC Suburban!
6" springs (front & rear) 35x12.50 tires on 15x10 wheels I rode around for about a year with the stock drive shaft and never had any problems. But I did notice that my shaft was maxed out so I had a new one made for it. Now I am going 3/4 ton axles with 10" springs and 38's. Let us know how it turns out! 
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Ryan Flowers 85 GMC Suburban 4x4 379 90 GMC Suburban 4x4 383 01 Chevy Suburban 2x4 350 Click here to email me Click here to visit my web site |
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02-03-2003, 12:47 PM
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#4 |
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Post Whore
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
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When I lifted my 69 4" with a manual three speed and Rockwell my front driveshaft did have to be lengthened. It was way short. I needed to add a CV joint also, too bad I didn't know that when I initially had the driveshaft lengthened.
As far as rim size, I'm running an 8" rim with no problem but you might be better off with a 10" rim.
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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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