The "upper & lower links", OEM name are both very similar other than length. A length of tubing with a short cross tube at at each end with molded rubber inside (bushing) with a second steel tube inside the rubber that the mounting bolt goes through. For this discussion please forget the fact that the upper links on the front end mount inward with respect to the mount location of the rear end. That's (binding) part of the reason the Tri-Link was implemented.

The Banjo is positioned in longitude with four links. Two upper links & two lower links. They mount to the Banjo approx 6 inches above & Banjo center line & approx 6 inches below the Banjo centerline.

IMHU of the rule we need to read the words written in the written rule that "ANY traction bar may be ADDED or SUBSTITUTED". The G-Force Tri-Link is ADDED & the DD-Force lower links are SUBSTITUTED.

Now if it's an accecpted practice to foam bush the upper links (accecpted as traction bars) & ADD a new TRACTION BAR which happens to be called a Tri-Link please explain why the OEM lower links do not do the same functions as the OEM upper links.

That ^ is question number one. It needs an answer to coutinue this communication IMHJ.

My answer to this question has all ready been posted in another post. I would like to have others explain their thoughts as to why the upper links are traction bars & why some think that the lower links are not traction bars. Not what Bo Bo thinks. Dam, just wait & see there will be a Bo Bo lurking.