DesertDueler2
1/2 ton status
Does anyone know what the spring rate is for the rear springs of trucks, or K5s? Preferably say a 87 K5 with 52s, or a 3/4 ton truck with 56" Springs.
Dan
Dan
CK5
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Spring rate?
- Thread starter DesertDueler2
- Start date
dunno the caculator for it. but its determind by the lenght of each leaf, thickness, and number of leaves .
DesertDueler2
1/2 ton status
ttt
Leafs aren't linear in spring rate. The weight/force needed to compress the first inch will be less than the weigh/force needed to compress them the last inch.
That being said, measure the ride height at a point like the center of the fender opening lip. If you're really anal about this, put some masking tape with a mark on it so that you measure in exactly the same place everytime. Stack weight directly over the axle until you get one inch of compression. If it's not over the axle then the weight is leveraged & the math gets uglier. Weigh all the pieces/chunks and divide by two to get the effective spring rate.
That being said, measure the ride height at a point like the center of the fender opening lip. If you're really anal about this, put some masking tape with a mark on it so that you measure in exactly the same place everytime. Stack weight directly over the axle until you get one inch of compression. If it's not over the axle then the weight is leveraged & the math gets uglier. Weigh all the pieces/chunks and divide by two to get the effective spring rate.
DesertDueler2
1/2 ton status
Well, I am getting ready to do coils in the back, and want to keep with the same spring rate more or less.
Dan
Dan
id go a with a long soft coil just for a lil more flex.maybe something from the front of a je*p TJ or cherokee. maybe something along the lines of a 6-8 inch spring. but thats my own opinion.
I wouldn't even mess with stock application springs. With those you have no control over spring rate.
Use coil-over coils. You can get them in a variety of different spring rates, and as long as you haven't marked them most vendors will exchange them for different rates should you not get exactly what you wanted on the first try. There are commonly available springs for 2.0" c-o bodies, 2.5" c-o bodies, and 3.0" c-o bodies. If you expect to need a really long coil then use springs for one of the bigger c-o bodies as they will be a larger OD.
Use coil-over coils. You can get them in a variety of different spring rates, and as long as you haven't marked them most vendors will exchange them for different rates should you not get exactly what you wanted on the first try. There are commonly available springs for 2.0" c-o bodies, 2.5" c-o bodies, and 3.0" c-o bodies. If you expect to need a really long coil then use springs for one of the bigger c-o bodies as they will be a larger OD.
DesertDueler2
1/2 ton status
In the back of the spring books it tells you the spring rate of each spring and if it is variable or not. SO using a stockk aplication should be fine for me. If I could afford coilovers I would, but so far I have $30 into my project. It is on 3/4 tons already, have the stuff to either propane inject a big block, or have a complete TBI SBC with an aftermarket harness. I just cant see spending $1000 on a set of coilovers, or atleast not at this time. Maybe when it gets rockwells
Dan
Dan
avalanche engineering has them (coil springs)
