diff --git a/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftBlock.java b/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftBlock.java
index 2750d05ab..e468327dd 100644
--- a/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftBlock.java
+++ b/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftBlock.java
@@ -125,13 +125,6 @@ public class GantryShaftBlock extends DirectionalKineticBlock {
 			}
 		}
 
-		if (!world.isRemote() && part == Part.MIDDLE && prevPart != Part.MIDDLE) {
-			TileEntity te = world.getTileEntity(pos);
-			if (te instanceof GantryShaftTileEntity) {
-				((GantryShaftTileEntity)te).checkAttachedCarriageBlocks(true);
-			}
-		}
-
 		return state.with(PART, part);
 	}
 
@@ -176,6 +169,20 @@ public class GantryShaftBlock extends DirectionalKineticBlock {
 		return onWrenched;
 	}
 
+	@Override
+	public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) {
+		super.onBlockAdded(state, worldIn, pos, oldState, isMoving);
+
+		if (!worldIn.isRemote() && oldState.getBlock().is(AllBlocks.GANTRY_SHAFT.get())) {
+			Part oldPart = oldState.get(PART), part = state.get(PART);
+			if ((oldPart != Part.MIDDLE && part == Part.MIDDLE) || (oldPart == Part.SINGLE && part != Part.SINGLE)) {
+				TileEntity te = worldIn.getTileEntity(pos);
+				if (te instanceof GantryShaftTileEntity)
+					((GantryShaftTileEntity) te).checkAttachedCarriageBlocks();
+			}
+		}
+	}
+
 	@Override
 	public void neighborChanged(BlockState state, World worldIn, BlockPos pos, Block p_220069_4_, BlockPos p_220069_5_,
 		boolean p_220069_6_) {
diff --git a/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftTileEntity.java b/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftTileEntity.java
index 3b15e5992..2f9fe658a 100644
--- a/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftTileEntity.java
+++ b/src/main/java/com/simibubi/create/content/contraptions/relays/advanced/GantryShaftTileEntity.java
@@ -19,8 +19,8 @@ public class GantryShaftTileEntity extends KineticTileEntity {
 		super(typeIn);
 	}
 
-	public void checkAttachedCarriageBlocks(boolean willBeMiddle) {
-		if (!canAssembleOn(willBeMiddle))
+	public void checkAttachedCarriageBlocks() {
+		if (!canAssembleOn())
 			return;
 		for (Direction d : Iterate.directions) {
 			if (d.getAxis() == getBlockState().get(GantryShaftBlock.FACING)
@@ -41,7 +41,7 @@ public class GantryShaftTileEntity extends KineticTileEntity {
 	@Override
 	public void onSpeedChanged(float previousSpeed) {
 		super.onSpeedChanged(previousSpeed);
-		checkAttachedCarriageBlocks(false);
+		checkAttachedCarriageBlocks();
 	}
 
 	@Override
@@ -75,10 +75,6 @@ public class GantryShaftTileEntity extends KineticTileEntity {
 	}
 
 	public boolean canAssembleOn() {
-		return canAssembleOn(false);
-	}
-
-	public boolean canAssembleOn(boolean willBeMiddle) {
 		BlockState blockState = getBlockState();
 		if (!AllBlocks.GANTRY_SHAFT.has(blockState))
 			return false;
@@ -86,9 +82,6 @@ public class GantryShaftTileEntity extends KineticTileEntity {
 			return false;
 		float speed = getPinionMovementSpeed();
 
-		if (willBeMiddle)
-			return speed != 0;
-
 		switch (blockState.get(GantryShaftBlock.PART)) {
 		case END:
 			return speed < 0;