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04-08-2004, 02:43 PM
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#1 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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<<JIMs70GMC>>
How much lift do you have on your rig? What size tires?
I will be replacing springs in my my '69 and I'm looking for a stance about like yours.
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Eric 1969 K20, 465/205 package |
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04-08-2004, 08:51 PM
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#2 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Eric, It's a 2" HD tuff country springs up front w/ ORD HD shackles. In the rear I removed the factory block and replaced it w/ a 2" tapered block and added an add-a-leaf from tuff country.
The front sits slightly higher than the rear maybe 1/2". I got about 3" of lift in the front and overall about 2.5" in the rear. The tires are 33" TSLs, which are about 34" tall, they do not rub. Mounted on 15x10 white wagon wheels. I got the tires because of the load range "D" rating.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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04-08-2004, 10:53 PM
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#3 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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The pic's of your truck are deceiving, I was thinking you had at least 4" or 5". I'm thinking of going with 2" HD springs all around + a 1" add a leaf. That should give me roughly what you have for lift.
I may also upgrade to the heavy duty hangers on the rear. I haven't figured out why some trucks have larger hangers, but as near as I can tell the 69's have a smaller hanger than 70, 71 & 72. The heavy duty units drop the front of the rear spring about 2" which would add about another 1" of lift.
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Eric 1969 K20, 465/205 package |
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04-09-2004, 06:15 AM
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#4 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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I got a good 3" of lift from the front. I talked to Steve @ ORD as I was not expecting that much lift and it's because they are the heavy duty springs, I could make them ez ride by removing the bottom spring, per tuff country.
Also like to add I replaced my body mounts w/ a poly kit, several of my mounts were so compressed you could wiggle the bolts about 1/2" up and down. Post a pic of the front of the rear spring I'd like to see how the hanger is mounted.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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04-10-2004, 12:02 PM
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#5 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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Here are some pics of the two different hangers.
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Eric 1969 K20, 465/205 package |
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04-10-2004, 12:03 PM
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#6 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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aaa
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Eric 1969 K20, 465/205 package |
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04-10-2004, 12:05 PM
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#7 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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bbb
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Eric 1969 K20, 465/205 package |
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04-10-2004, 05:23 PM
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#8 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Damn! That is a big difference.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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04-12-2004, 09:25 PM
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#9 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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never really noticed
here's mine on the 70/71
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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04-13-2004, 10:06 PM
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#10 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Eric, I went out and checked my 70 GMC and it has the shorter mount like your 69. But I believe they compensated for this because before I added the 2" lift my truck had a factory 1" block in the rear. I'm thinking I might look to find some of the longer mounts and get another inch of lift in the rear and give mine a slight rake.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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04-14-2004, 08:02 AM
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#11 |
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Registered User
Join Date: Dec 2001
Location: New Richmond, WI
Posts: 547
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I had a 70 chevy that had the big mounts. I guess that kills my theory of only the 69's having small mounts.
I wonder if there was some sort of heavy duty option or something?
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Eric 1969 K20, 465/205 package |
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04-14-2004, 09:05 AM
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#12 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Both my trucks had the HD front and rear spring RPOs on the glove box. Maybe a mid-year switch?
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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