Torque spec - 5/8" HEIM bolts for my 4 link?

[HT413]

Plan on doing a grease job and general maintenance soon and I figured I'd go thorough the rear suspension to make sure it's all tight as well. It's a 4 link with 5/8" HEIM joints, pan hard bar with all grade 8 hardware. What's a good torque spec for this setup? I figure the 5/8" grade 8 hardware has a torque spec of like 240 ft-lbs, but can the joints handle that? (Heck, I don't know if MY joints can handle that.)

Gracias.

 

[Hemi Rebel]

I think hand tight would be good. 240 ft-lbs would fsu

 

[Cranky]

Plenty of torque charts on the net....but a 5/8" course thread plated fastener is around 155 lbs. and I assume that would be for it being dry since the chart I found didn't specify. Oiled is usually less.

 

[Budnicks]

do you have Nylock or some other self-locking type nuts on the other end ??, you probably should, if so just run the bolts down to hand tight maybe 50#'s, they don't need to be overly tight, not knowing your set up that's just an opinion, but I wouldn't over-torque/tighten down on the 4 link brackets or the Heim/Spherical Joints either...

 

[HT413]

do you have Nylock or some other self-locking type nuts on the other end ??, you probably should, if so just run the bolts down to hand tight maybe 50#'s, they don't need to be overly tight, not knowing your set up that's just an opinion, but I wouldn't over-torque/tighten down on the 4 link brackets or the Heim/Spherical Joints either...

Good point on the nylock nuts - I'll pick some up.

- - - Updated - - -

I think hand tight would be good. 240 ft-lbs would fsu

Thinking the same thing - crank em down to 240 ft-lbs and I just created the first hard tail belvedere.

- - - Updated - - -

I'll crank em down to whatever feels right - 50ish ft-lbs, use nylock nuts, grease the joints and be done. Thanks fellas.

 

[dvw]

I'd be worried more about the joints themselves. A worn or broken heim is bad news. The nuts are only to lock the adjustment of bar length. They serve no strength value in this application.
Doug

 

[HT413]

I'd be worried more about the joints themselves. A worn or broken heim is bad news. The nuts are only to lock the adjustment of bar length. They serve no strength value in this application.
Doug

Good point, dvw.

 

[Cranky]

Ladders are a bit different in as the rear attachment points need to be tight because they don't move but the fronts do pivot. Wasn't thinking about a 4 link needing to pivot at all the points. Anyways, yeah, no need to go full torque on them. Also, I used a dab of Loc-tite on my ladders for a bit more insurance on the nylocs once I got them adjusted where I wanted them.