New to the 4x4 thing need some suspension advice - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ianjenkins · 10-26-2004, 12:19 PM

New to the 4x4 thing need some suspension advice

I recently purchased a 71 ½ ton that has been converted to a 4x4. It has a 2” suspension lift (front and back) but the front leaf springs are completely shot (sagging under the weight of a 402 BB). With this said, I want to replace the springs and shocks but don’t want to end up with the same problem. I’d like to stay with the 2” lift but should I put back heavy duty front springs? I’m considering HD 2” lift springs from www.suspensionconnection.com Link: http://www.suspensionconnection.com/...on/182612.html.

Will this be enough to compensate for the BB or should I add-a-leaf?

Also, with the 2” lift on the front with an “add-a-leaf” should I go with the 3” rear?

By the way, I’ll be using this truck periodically for hauling a bass boat but not for wheeling.

Thanks for your help,
Ian

**JIMs70GMC** · 10-26-2004, 01:34 PM

I have the 2" HD lift w/ a SBC. I netted about 3.25" of lift. So w/ your BBC you should be right in there for 2" of lift. The add-a-leaf could make it stiff.

10-26-2004, 12:19 PM	#1
ianjenkins Registered User Join Date: Mar 2003 Location: Frederick, MD Posts: 160	New to the 4x4 thing need some suspension advice New to the 4x4 thing need some suspension advice I recently purchased a 71 ½ ton that has been converted to a 4x4. It has a 2” suspension lift (front and back) but the front leaf springs are completely shot (sagging under the weight of a 402 BB). With this said, I want to replace the springs and shocks but don’t want to end up with the same problem. I’d like to stay with the 2” lift but should I put back heavy duty front springs? I’m considering HD 2” lift springs from www.suspensionconnection.com Link: http://www.suspensionconnection.com/...on/182612.html. Will this be enough to compensate for the BB or should I add-a-leaf? Also, with the 2” lift on the front with an “add-a-leaf” should I go with the 3” rear? By the way, I’ll be using this truck periodically for hauling a bass boat but not for wheeling. Thanks for your help, Ian

10-26-2004, 01:34 PM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I have the 2" HD lift w/ a SBC. I netted about 3.25" of lift. So w/ your BBC you should be right in there for 2" of lift. The add-a-leaf could make it stiff. __________________ 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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