Doublej has a LSR DC-2 swingarm. I am not convinced you have one of those PR Crippen. If you compare the pics, your shock mount on the swingarm looks to be a further back compared to the pic doublej posted. (Look were the swingarms start to head up to the bearing carrier. Yours is behind that point, while doublej's is right at it.) Even if yours is a DC2, the DC2 swingarm was not designed for a stock frame, it was designed for a LSR no-link frame, the upper mount is higher compared to a stock frame on a LSR no-link frame. You may be able to get this to work, but you will probably have to purchase a new shock built to your specs, which you will need to determine based on bottomed out and extended frame heights. Even then, not sure how the geometry would work. You may be able to use the shock you have, but may need to raise the upper shock mount to work. Just some more info to think about. Remember, the compressed length of your shock is just as important as the extended length. To short of a compressed length and the frame will hit the ground, not a good thing.
Doug
