By steve n carol on Thursday, March 22, 2007 - 11:05 pm:I just swapped out the track chains and sprockets on this 450 crawler, (sn 3064230). The old sprockets are in good condition, I should have kept them. The chain links are wearing down. Some were cracked, alot of rocks to roll over. I welded some 2 years ago. the welded ones held up great, But I broke a link 2 weeks ago and replaced all but the shoes. I liked my shoes.
The pins in the links are tight, although there is some snakiness. The bushings are worn some but servicable. I haven't lost a track, (off of the sprocket). These chains will fit CASE models 310, 350, 350B and 450 (A). These I can seperate, (cutting torch).
The sprockets will fit the above and 450 C, IF the are a 52" pitch (that what the book calls it). This is the measurement from sprocket center to sprocket center taken at the teeth. The older machines had a 50" "pitch". These items are in So Cal. 92586. They will be on ebay soon (I'd rather not), unless they go here or on the other forum....
The sprockets, (27 teeth), should go as a set but I will seperate them.
lachneyATnetzeroDOTnet