For anyone wondering if you can upgrade your tie rod with 15" wheels you can

RK aluminum tie rod

 

What are the specs on the wheels? Offset, backspacing?

 

That is the old version of the RK tie rod. The new RK tie rod has much larger joints so clearance becomes an issue. We have successfully fit the Synergy Tie Rod with 15" wheels. Typically 3.75" back spacing but not all wheel brands and models will fit. We have even fit the Synergy Tie Rod with some 15" wheels with 4" back spacing.

 

Yeah it is the older RK tie rod that uses the upper TRE from the drag link.

The wheels are MB 11's 15x8 and 3.75 backspacing

 

What's the difference between the old and new bar?

 

I just did the synergy as well. 15" mb72s with 3.75 backspacing. Tight but fit with no grinding of joints

 

I posted a thread way back on here. My Synergy Tie rod did not fit 15" black rock Viper wheels.

 

Pretty much everything. The new Tie Rod is larger in diameter as well as having much different joints. The new joints are a heim joint that RK designed.

 

I had both side by side in my living room at one point. The RK has absolutely massive ends. I used to have a picture but I can't seem to find it now. The end was 2.5" in diameter. I really did not like the size or design and kept the synergy , which I love.