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09-07-2007, 11:24 AM
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#1 |
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Noobie McNoobster
Join Date: Nov 2006
Location: SoAZ
Posts: 68
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71 K20 Axle swap
I have a source for a full set of axles out of a late 80's 1 ton 4x4 fleetside (Dana 60 front and 14 bolt FF) , what would I have to do to get them to work? e.g. swap perches spring mounts, etc? Thanks.
P.S. my 68 has 71 running gear right now, and I am looking for added flexiblity when it come to upgrades, and I am also planning to go with a big block in the not too distant future.
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The Stable: 1968 Chevy K20 w/tilt, working AM/FM, AC and 350/350/205 w/Disk Brakes  1990 Chevy V2500 Suburban 2005 Kawi KLR650 1983 Honda Goldwing GL1100 Standard (Naked) 1995 Miata M Fortes Fortuna adiuvat Last edited by 68K20; 09-07-2007 at 11:25 AM. |
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09-07-2007, 05:11 PM
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#2 |
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Post Whore
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Re: 71 K20 Axle swap
The 1 ton rear axle will slide right in place but you will need to get a conversion u-joint for the rear driveshaft. You might have to get the rear driveshaft shortened also.
The front axle will also slip right in place. I will let someone else who knows more about give info about the brake fittings and front driveshaft. I don't believe it will need a conversion u-joint. The front axle will gain your truck about 1" of lift. You might want to throw this question in the 4x4 discussion forum for more responses.
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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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09-07-2007, 05:34 PM
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#3 | |
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Registered User
Join Date: Feb 2005
Location: Redway, Ca
Posts: 97
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Re: 71 K20 Axle swap
Quote:
Not to question your expertese but I thought that the pad width was different on the 14 bolts? My buddy put one under his 71 1/2 ton and had to move the pads. Now I have heard that some of the 14 bolts had different pad widths, oh wait maybe that was it the 1 tons 14 will bolt up but a 3/4 ton 14 needs mods? Sorry I'm a little confused, I also have a dana 60F and 14 bolt and someday when I finish my other projects they find a home under the 71. Also good info on the 1" lift from the 60, I never knew that. Albie |
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09-08-2007, 01:50 AM
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#4 |
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Registered User
Join Date: Nov 2005
Location: VIRGINIA
Posts: 905
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Re: 71 K20 Axle swap
one other thing is when and if you do need the rear spring perches moved or weld new ones on.. that will raise the rear about a inch also... i had that happen to me. so i just cut a inch outa my 4 inch blocks to level it out.. good luck
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1969 rs 1966fastback 1969swbc/10 2006gt 1972swb4x4 |
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