XRAY - Model racing cars

what shock tower [name/part #] should i buy so i can use ther same roll centre.......im using the standard settings and ive bourgt two carbon shock towers both have the roll centre to close and even if i wind the arms in all the way it still doesnt reach any of the roll centre holes................please help

What parts have you bought

I have a selection of shock towers for the Xray and I dont have a problem.

The rear link is normally mounted on the bulkhead so I asume it is the front end you are having problems with.

The three graphite mounts available from Xray to fit the front end of a "C"hub car have the holes for the link in the same positions as the Raycer moulded part. You may have to use a longer screw and a spacer to get your links at roughly the same angle but thats it. I dont know of any compatability issues with the mounts. If I have missunderstood your question.

i have bought two shock towers 1 from stormer hobbies which is a pivot ball type which i didnt want the other is for a t1 factory and the holes are in totaly diferent positions different so i kneed to get shorter arms so it fits

ands its from the front

All you need is shorter turnbuckle. See this discussion on the subject:
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In one of the posts I list the partnumbers for several shorter tunrbuckles.