Thanks for your answers !
I made some searching and I found a post talking about keeping the old track.
On this post :
https://j30.us/ubbthreads/ubbthread.../Re_Windward_sheeting_cars.html#Post1420John said :
We purchased the med-range Harken windward sheeting "kit", I don't recall the part number. The "kit" (I think that is what they call it) includes everything but the new traveller car. The kit holes are about 1/16 off the alignment of the original equipment car, but a minor adjustment to the holes (with a tungsten-tipped drill), and it was a bolt-on item. We removend the cleats the pulleys from the old arrangement, and mounted the pulleys on the end of the existing track to give 4-1 purchase. We ahve raced the boat constantly (~50 races/yr) and the travellet hads worked flawlessly, provide it is well lubricated. One of the best upgrades we made.
and :
Our objective was to not remove the original track - so no, we did not put a spacer under the track. The car and traveller kit will clear the bridgedeck, but you do have to be careful to keep the traveller lines clear - they love to get jammed between the car and the edge of the seats.
Something still seems strange to me : he said that he made "minor adjustment to the holes".
But there is 1,466mm difference between two holes, it gives 10,26mm difference for the last hole. It seems more than a "minor adjustment" to me... 1,026cm it is not an adjustment, it is a new hole...
But if the old track can't be used to lift new track, I will search for a piece of teak.
Where did you find your piece of teak ?
How many screw/bolt did you use ? (old track uses 16 screws/bolts, do we need so much ?)
