l39 thumb

[shelflife]

hi there . i would like to attach a thumb to my l39 . any idea what length i should buy . i have my sites on . one that is 28inch long from pivot to tip ? sounds big hoping you can help . thanks

 

[scdeerslayer]

For the loader or the backhoe? Either way you'll need to measure what you have and match it.

 

[G.rid]

Most bolt on or weld on thumbs I've looked at have recommended sizes. They base it on a measurement from the dipper stick to the bucket teeth, with the bucket at 90 degrees.

After building and using my own, I'd prefer it a few inches longer than the bucket. I don't usually use the thumb at 90. The pivot point is about 3 inches higher the the bucket pivot. The lower it gets, the further from the teeth it gets. The other option is to use a longer pin and mount the thumb to the same pivot as the bucket, then the teeth ends should stay the same.

Hard to describe but I hope it helps.

BTW... Its the best mod I've done to my 'bota, we have a bumper crop of rocks in Nova Scotia!