Gen 1 trailing arms?

[GrantCee]

I've seen references to the need for upgrading Gen 1 trailing arms, but I've also seen vague references to only being a concern with the LWB/v6.

Is this necessary on my 2.6l SWB? Is this something that needs to be fabbed or is there a bolt-in?

[Crumb]

2.6 SWBs don't have trailing arms so no worries.

[DRLExpress]

Did I read somewhere that there was a place(lower edge somewhere) that a reinforcement could welded on the Gen 1 arms.


Doug

[GrantCee]

Duh... Doh!

Hahaha. I was going to ask where I could find a 2.6l V6 !

[GrantCee]

2.6 SWBs don't have trailing arms so no worries.

Yet another reason the 2.6l rules! 

[Sedole]

Is breakage of the Gen 1 trailing arms mostly just occurring with those who have removed their rear sway bar?

[Crumb]

The arms are just really thin, any wheeling is going to break them eventually. I even bought a truck that hadn't been offroad and it had a broken arm, that's why they revised the part. They are almost exactly the same on the gen 2 except they run a smaller bushing making the sreas around thicker. As far as reinforcing them goes, it could be done but you'd need to remove the bushings, preheat the arms, weld extra plates on the bottom with a structural weld process, post heat then dress and polish all welds. Even after all that they could still break on the top sides. In short just get gen 2 arms.

[Sedole]

just get gen 2 arms.

Will any Gen 2 arms work?  Any advantages to SR ones?  I just know to use the Gen 1 bushings on the front.

I might go pull some tomorrow.

[DezRacer25]

This from a SWB V6 89 that I broke then up graded to the Gen 2. No problems since and love the Siberian bushings. I had the rear sway bar on when they broke but off now with the new Gen 2 arms. Welded one at bottom is not mine donated from the wire back when by one of the mods.

[ChargerX3]

This from a SWB V6 89 that I broke then up graded to the Gen 2. No problems since and love the Siberian bushings. I had the rear sway bar on when they broke but off now with the new Gen 2 arms. Welded one at bottom is not mine donated from the wire back when by one of the mods.

Ok, looking at your side by side I dont see any real advantages to the 2nd gen. If anything the material around the circumference of the bushings appears to have even less material. Is it really even an upgrade. I ask because I have a 95SR that Im pulling parts off of and was going to grab these as well, but now im not so sure. Interested in why these appear to be a better choice.

[DezRacer25]

There is more beef to them it just doesn't look like it because the Siberian bushings have a lip on the outside where the original bushings fit flush inside the arm with no lip on the outside.

[ChargerX3]

Ok. That helps.

[Justice]

The gen 2 arms are definitely thicker at the point of breakage. I’ve compared them side by side. Wheel with gen 1 trailing arms at your own peril. They will break.

[MudRaider]

This from a SWB V6 89 that I broke then up graded to the Gen 2. No problems since and love the Siberian bushings. I had the rear sway bar on when they broke but off now with the new Gen 2 arms. Welded one at bottom is not mine donated from the wire back when by one of the mods.

Ok, looking at your side by side I dont see any real advantages to the 2nd gen. If anything the material around the circumference of the bushings appears to have even less material. Is it really even an upgrade. I ask because I have a 95SR that Im pulling parts off of and was going to grab these as well, but now im not so sure. Interested in why these appear to be a better choice.

This is a change people have been doing for 20+ years. Personally never heard of any Gen 2 ones breaking. Might not be visible, maybe they just changed the metal they are made from. Maybe they sprinkled fairy dust and unicorn horn into it. But a heavy ass Gen 2 is going to put a lot more stress on those than your SWB will.

[GEN 1]

I broke a passenger side G1 trailing are when I dropped off a 2' rock and landed on another rock.  Swapped to G2 and no issues and I have dropped it farther with these arms.  The G2 is "beefier".

91 LWB