I used the JOAL JCB JS330L dipper,bucket, and carbody with tracks, the entire

upper structure was custom fabricated

The boom had to be cut to size and then completed reshaped to match

the real machine

Rear view of the huge molded radiator and counterweight

Painted in the appropriate Link-Belt colors and decaled to match

Dual exhaust pipes

Metal linked tracks

Overlapping boom hydraulic cylinders allow for high boom height...

and incredible digging capabilities

Despite the enormous amount of time and effort I had to put into molding

and fabricating this machine its a piece I've always wanted to build and

add to my collection so I'm quite pleased with how it all turned out 

To help scale out the 7400's size here's some shots of it next to a

CAT 385B L excavator

Side

Rear

Front

And one next to a link Belt 210

After crawling onto the lowloader the LS-7400A prepares to leave the

 yard and gets ready for all the action that lies ahead

 Here's a shot of the Link-Belt in action lowering a segment of pipe into

the trench it just dug

 Another shot of the 7400 in action lowering pipe segments