DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?
In your #857 post the drawing you have labelled G-Comp is from the 60" kit instructions and the drawing you have labelled G-Comp X is from the 54" kit instructions.
If you look at both sets of instructions for the 56" kit show the dimensions the same whether is a G-Comp or G-Comp X kit. The 56" kit instructions are the only ones I can directly compare because they only have the 54" and 56" G-Comp X instructions shown and they have the 56", 58", 60" & 62" G-Comp instructions shown. But if you open up the G-Comp 56"-62" instructions, you can see that the dimension changes with the different track width kits. The 56" & 58" kits have the same dimension. And the 60" & 62" kits have the same dimension. So I can only assume that the 54" G-Comp has the same dimension as the 54" G-Comp X.
In your #857 post the drawing you have labelled G-Comp is from the 60" kit instructions and the drawing you have labelled G-Comp X is from the 54" kit instructions.
If you look at both sets of instructions for the 56" kit show the dimensions the same whether is a G-Comp or G-Comp X kit. The 56" kit instructions are the only ones I can directly compare because they only have the 54" and 56" G-Comp X instructions shown and they have the 56", 58", 60" & 62" G-Comp instructions shown. But if you open up the G-Comp 56"-62" instructions, you can see that the dimension changes with the different track width kits. The 56" & 58" kits have the same dimension. And the 60" & 62" kits have the same dimension. So I can only assume that the 54" G-Comp has the same dimension as the 54" G-Comp X.