Pivot block bar & Pivot block shoe for Kinco Model 9750 winow

Hi: I've got a couple of broken pivot block bar's that I need to replace (I'd also like to know how to put them in). The window is single hung & it's inside detention is 53" x 28 3/8". I've included pictures of the window & the broken pivot block bars. One of the pivot block shoes is also broken. Both parts look tricky to install & any help there would be appreciated. Thanks. John

Hello Again: I purchased the pivot bar & shoe lock (the measurements are fine). Thanks for that, but I do have just one more question. Is there any easy way of installing these? John.

Thanks Paul:

That will help!

John