I have heard people say ext cab drop coil springs can't be used on the reg cab and viceversa. Anybody know if this is true. I have both an ext cab and a reg cab and see no difference in the front suspension.

Check some spring manufacturers and see if they have different part numbers listed for std cab vs ex-cab. That would tell you immediately.

I would think the spring rates would be stiffer on an ex-cab since it they have to support more weight up front due to the additional cab length.

The spring rates are different for the exact reason Tony mentioned.

I know I got the same front springs in my truck as my buddy has in his RCSB. I hope they did not screw me!

I know I got the same front springs in my truck as my buddy has in his RCSB. I hope they did not screw me!

Maybe they're the same but, most places list two different kits for a reg or ext cab. Maybe the front coils are the same :confused:

Maybe they're the same but, most places list two different kits for a reg or ext cab. Maybe the front coils are the same :confused:


Dont know, but I will be following up with Bell Tech on Monday.

Maybe a slight difference in spring rates? I heard that the excab only adds like 400 lbs, and since the weight is in the middle of the truck it pretty much dispurses it across the whole frame, 200 front, 200 rear. So unless they were to start making heavyset ol lady springs to compensate for heavy dates, i think the springs should interchange with little to no difference in ride height and ride quality.

i thought that the hotchkis set up was the same spring but it to drops different rates as well. i think reg cabs get two inches and ext cabs get three/

i thought that the hotchkis set up was the same spring but it to drops different rates as well. i think reg cabs get two inches and ext cabs get three/This was my understanding.

i have belltech extended cab 3" and it dropped my truck 2" reg cab no problems i tried it out because i got a really good deal on them almost free

If you check almost every spring manufacturers
They make 1 spring...
Example
Reg cab springs drop 2 inches
Ext cab Springs drop 2.25 to 2.5 inches
The aftermarket springs are interchangeable
I have 2 sets of springs currently -
Aftermarket manufact dont want to make 2 different sets of springs
Increases costs and overhead
If you note below
Same spring - slightly different drop
http://www.hotchkis.net/cgi-bin/EDCstore.pl?user_action=detail&catalogno=1910F

If you check gm - the part numbers for RC and EC springs are different
because of the different spring rate

You can interchange springs
The springs in 03 EC are the same as a RC

That's what i thought. Sweet.

So if I purchased 2" DJM drop coils for an ext. cab, they would drop my regular cab about 1.25" to 1.5"?

In theory, if they have 2 different spring offerings for EC and RC