JD straight 450 input shaft

yooper2001 · Post by **yooper2001** » Sat Oct 18, 2014 8:01 pm

Hello! Thank you for taking the time to read this. My
Dads JD straight 450 had the HLR input shaft shear in
half. The problem I am having is the Parts Catalog states
it is an AT21511, but it is different than shown. On the
front of the shaft it has a spline and a snap ring and a
keyway on the back of the shaft...but all of the shafts I
have found have a keyway on both ends....If anyone has
dealt with this before or knows where I can locate a
serviceable one help would be appreciated.....Thank you.

jtrichard · Post by **jtrichard** » Sun Oct 19, 2014 9:03 am

can you post a pic of the shaft you have

yooper2001 · Post by **yooper2001** » Sun Oct 19, 2014 5:10 pm

I hope this works...

ja600 · Post by **ja600** » Mon Oct 20, 2014 7:20 am

That looks just like the one in my 450 also. Can't help with locating parts but I would suggest figuring out why it broke. Are your bellhousing spacers broken? Did the engine mounting bolts break or work loose? Something put a lot of stress on the shaft. Good luck

yooper2001 · Post by **yooper2001** » Mon Oct 20, 2014 8:20 am

Yes, three of the four Bell Housing bolts were broken(apparently for years...long before he bought it by the rust on them)....Now drilled and replaced with one inch CAT bolts.

yooper2001 · Post by **yooper2001** » Mon Oct 20, 2014 9:51 am

OK I finally know why its different.....its the input shaft for a dozer with a power take off.....Now to find one..

yooper2001 · Post by **yooper2001** » Fri Oct 24, 2014 3:04 pm

Thanks to all....700 dollars lighter...but dozer functional again! Lesson learned.....Inspect the bell housing bolts when buying a 450 dozer....

ja600 · Post by **ja600** » Tue Oct 28, 2014 12:17 pm

Wow! That was quick!

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JD straight 450 input shaft

JD straight 450 input shaft

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