Belltech Spindles

[david71]

Hey,
First post but have been lurking for some time. I'm building a 93 C3500 and pulled a set of Belltech 3600 spindles off a week ago. Belltech's website says 3700 is the part for my truck so I ordered them and there is no difference at all in the spindles. Anyone ran in to this that can give me some info? I called Belltech and the tech service is absolutely clueless. He Just kept reading directly from the installation manual. Thanks in advance. Threw in some pics of how it started and where I'm at now.

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[bretcopsey]

Superseded part number? Not definitive proof, but Google search came back matching 3600 on Napa’s website, but when you enter vehicle to confirm it then switches to 3700. I’ll look to see what number is on mine next rime I get a chance.

https://www.napaonline.com/accessories/belltech-drop-spindles/1883f0b8?cid=paidsearch_shopping_dcoe_google&utm_source=google&utm_medium=organic&utm_campaign=organicshopping&gclid=EAIaIQobChMIv9_evYzm_QIVYCKtBh03Jw75EAQYAiABEgI_3vD_BwE&gclsrc=aw.ds

 

[THEFERMANATOR]

I did some looking and it looks like 3600 was for 88 only. Looked on rockauto and they list a different upper ball joint for 88 than they do other years, so it's probably a pitch difference in one of the tapered seats that is different.