Firstly, AFV Clubs tracks are incorrect for an M109A6 Paladin. They are T-136 tracks used on M108s through M109A5s. The M109A6 uses T-154 tracks, available from Riich Model as indi-links.
![](../../../www.1999.co.jp/itbig19/10194681.jpg)
The difference is the the placement of the center guide tooth and the guard around the track pad. On the T-136 tracks, the guard is around the whole pad and the center guide is in the center of the track block. On the T-154 tracks, the guard is only on the front corners and the center guide is offset to the front of the track pad.
T-154s
![](../../../lunascale.com/web/product/big/lunascale_2483.jpg)
To make them easier to assemble, leave the end connectors on the sprues and attach the blocks to the, They are correctly spaced to slide on them.