Constant Force balance
Hi there!
Thanks for reaching out to us. I'm afraid we couldn't cross-reference the given code. Can you show us a photo of your pivot shoe? Once we ID that, we can determine the compatible coil springs.
Thank you! This resembles the 15-177. The Series 152 are the compatible coil springs which are sold separately. They fasten to the side of the shoe with a screw like the 33-072. You'll have to check the band of the coil spring for a weight code.
Please let us know if you have any questions!
We don't sell your old springs that hook into the shoe, unfortunately, which is why you'll need the Series 152 coil springs. The 15-143 bushing, 15-144 bushing cap, and 15-145 support barrel are the coil supports that "sandwich" each coil spring.