REar leaf spgs--4x4 vs 2x4 ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Huck · 12-07-2002, 06:10 PM

Are the leaf springs in a 4x4 the same size--length--as a 4x2 truck?
Am considering swapping my 4x2 1/2 ton rear leafs for some 3/4 ton 4x4 leafs.

Hooter · 12-07-2002, 09:56 PM

the leafs are the same length. But your truck will sit higher in the back with the 3/4 leafs

Truck Hippy · 12-07-2002, 10:03 PM

Huck, i'm not sure but i think the 4x4 spring is also wider than the 4x2 spring. You may want to check it out before you start turning bolts.

Huck · 12-08-2002, 08:00 PM

Going to answer my own question here-----1/2 tons have a 4 leaf spring pack which is approx 52" long and about 2 3/8" inch wide. The 3/4 ton off a 4x4 is also approx 52" long but is about 2 5/8" wide and has 7 leafs. The U bolts and the spring brackets from the 1/2 ton are too narrow for the 3/4 ton springs.
So, you either get to grind down the 3/4 ton spring leafs a bit or return to square one. I may try swapping a few leafs to create a "5/8ths" ton leaf spring!

12-07-2002, 06:10 PM	#1
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	REar leaf spgs--4x4 vs 2x4 ? Are the leaf springs in a 4x4 the same size--length--as a 4x2 truck? Am considering swapping my 4x2 1/2 ton rear leafs for some 3/4 ton 4x4 leafs.

12-07-2002, 09:56 PM	#2
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	the leafs are the same length. But your truck will sit higher in the back with the 3/4 leafs __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

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12-07-2002, 10:03 PM	#3
Truck Hippy Registered User Join Date: Aug 2002 Location: Hickory, NC. Posts: 776	Huck, i'm not sure but i think the 4x4 spring is also wider than the 4x2 spring. You may want to check it out before you start turning bolts.

12-08-2002, 08:00 PM	#4
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	Going to answer my own question here-----1/2 tons have a 4 leaf spring pack which is approx 52" long and about 2 3/8" inch wide. The 3/4 ton off a 4x4 is also approx 52" long but is about 2 5/8" wide and has 7 leafs. The U bolts and the spring brackets from the 1/2 ton are too narrow for the 3/4 ton springs. So, you either get to grind down the 3/4 ton spring leafs a bit or return to square one. I may try swapping a few leafs to create a "5/8ths" ton leaf spring!



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