Topic: Torque on leafspring

[Marlinman]

Does anyone know how tight the bolt that goes threw the shackle. I lost one last time wheeling and realized that all of them are not that tight? I have the new parts but don't want to lose another one but don't want to crank it on to tight. Any help would be appreciated.
Jason
 

[DTB]

what does your service manual  say?

[79coyotefrg]

they should be just snug,  thats all, i always  kinda bugger  the thread  a little  so the nut  doesnt come off

if  they are too tight  it wont  flex

[DTB]

i always  kinda bugger  the thread  a little  so the nut  doesnt come off

make sure to use metal locking nuts...and like glen said...snug but not too snug so it clamps the leaf between the shackles

[Marlinman [OP]]

Thanks guys. Thanks kind of what I thought.

[TheTransporter]

I used stover lock nuts that came with the spring kits from Marlin and put them on there some what tight and had one come off also.

[RN37DD]

get it snug like they said above ...  and try using some locktight blue 24240.. I've used used it on just about everything and have had good luck. it well still come off easy where it's time to wrench and it seals and protects the threads from dirt/salt/rust.

[Willy Mammoth]

Once they are snug put a tack weld on the thread to the nut about a 1/4''. This will keep it from backing off and can be broken loose when needed.

Or if there is enough room put a second nut against the other and tighten them together.

[RN37DD]

just for fun I checked my 81 Toyota service manual and the spec they give is 55 to 79 Ft lbs. thats with the truck on the ground and stock shackles.

[85xcab]

What springs and shackles are they? If they are Marlin springs and you tighten them that tight they will not move and will destroy the bushings. If they are the type with steel sleaves through the bushing then you can torque them down tight without problems.

[TheTransporter]

I have the Marlin shakles