anyone cut down coil springs?

[90mj88xj]

I have some 6.5" rc coils for my mj. I did a,so a out back that got me 5.5". Anyone try to cut a set of coils down before? If I can do that successfully, I will. If it's not a good idea, anyone want to trade for some 4.5 or 5.5 coils?

[DirtyComanche]

When you cut them down the spring rate increases.  You can calculate it easily enough using one of the online calculators.  If you feel the front is stiff or rides poorly now, I would not suggest cutting them down.

 

If you cut them, mark them with a sharpie, wrap a damp rag around them just above where you intend to cut them, and use an angle grinder with a thin/ultra-thin cutoff wheel (1/16" is about ideal).  You just want to avoid getting them any hotter than needed.

[Pete M]

I wouldn't.  I would sell them and get what's needed.  or simply add in a slightly longer shackle in the rear. :thumbsup:

 

have you installed them yet?  do you have a heavier than normal bumper up front?  it could just balance out.

[dustyinthedirt]

:agree:

[Pete M]

also, since our trucks generally have a forward rake, a 5.5 SOA might very well be matched with 6.5 up front.  don't know until you try.

[DirtyComanche]

also, since our trucks generally have a forward rake, a 5.5 SOA might very well be matched with 6.5 up front.  don't know until you try.

 

IMHO, you want to preserve the rake if you intend to use it as a truck.

 

Depending what's going on, adding a full length leaf to the rear packs might be be another good option.

 

Cutting coils is a bit hilljack to say the least, but it's like leaf springs, you can tune them providing you know what you're doing.

 

Failing all that, tell everybody that the truck is a prerunner.