Hello. I’ve got an IH 175C s/n 2766. I had pulled the trigger on buying new track chains (in stock) and sprockets (on back order). However, I asked the dealer to check about pad/grouser bolt size because I saw in the quote 3/4” bolts. Mine has 5/8”. The response was the new chains come with 3/4” and they said the chains wouldn’t work on my machine. This is a 7.5” pitch track as I measure 7.75” avg across 5 links which makes since for pins/bushings being worn out.
At first I thought I could just drill out the pads to 3/4 but the rep sent a line drawing of the links and the bolt pattern is a trapezoid shape (parallel bolt lines but two bolts spread further on trailing or leading edge of link) not in the box shape like mine.
I do see TD15C’s with the box pattern I describe but not new shape. I suppose I could find worn out dozer pads and cut them to 16” and add a bar for 2 bar pads. The machine is used for some tree clearing but also moves dirt and I’d like to be able to pivot with full loads of dirt for loading dump trucks.
Any suggestions here? Matching 3 bar grousers are not available from that same supplier and I wouldn’t want to pay the money if they were available. I’ve seen some reference to D6 parts working. Was the bolt pattern of pads pretty standard overall on different
machines. Maybe more used options than 175c’s?
I’ll add some pictures.
![EBC3E450-7325-4840-BAD5-93E96DB05636.jpeg EBC3E450-7325-4840-BAD5-93E96DB05636.jpeg](https://www.heavyequipmentforums.com/data/attachments/238/238772-3d048be9b28789659d5d8d783be122d5.jpg)
At first I thought I could just drill out the pads to 3/4 but the rep sent a line drawing of the links and the bolt pattern is a trapezoid shape (parallel bolt lines but two bolts spread further on trailing or leading edge of link) not in the box shape like mine.
I do see TD15C’s with the box pattern I describe but not new shape. I suppose I could find worn out dozer pads and cut them to 16” and add a bar for 2 bar pads. The machine is used for some tree clearing but also moves dirt and I’d like to be able to pivot with full loads of dirt for loading dump trucks.
Any suggestions here? Matching 3 bar grousers are not available from that same supplier and I wouldn’t want to pay the money if they were available. I’ve seen some reference to D6 parts working. Was the bolt pattern of pads pretty standard overall on different
machines. Maybe more used options than 175c’s?
I’ll add some pictures.
![EBC3E450-7325-4840-BAD5-93E96DB05636.jpeg EBC3E450-7325-4840-BAD5-93E96DB05636.jpeg](https://www.heavyequipmentforums.com/data/attachments/238/238772-3d048be9b28789659d5d8d783be122d5.jpg)