1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Spindle Size Differences?

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Old Mar 7, 2016 | 07:01 PM
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tommyeflight89's Avatar
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Question Spindle Size Differences?

Hey guys,

I have a question here regarding the difference in spindle size between a small and big bearing spindle.

I am preparing to have my coilovers (Stance) welded and I have a set of small bearing spindles.

I am concerned that the size of the spindle body is different between big and small bearing spindles.

Can anyone confirm this?

See pic below. The included coilover bracket is actually slightly bigger than the spindle casting where it must be welded.

Now I am wondering if I need to go and find larger bearing spindles so they can be properly welded?
Attached Thumbnails Spindle Size Differences?-dsc_1961.jpg   Spindle Size Differences?-dsc_1960.jpg  
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Old Mar 7, 2016 | 10:29 PM
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From: https://www2.mazda.com/en/100th/
there are three spindles,

79-80, 81-83 and 84-85.

the 79-83 are small bearing, and 84-85 are big.

they all use the same strut tube diameter, but the 79-80 is longer.

not sure about the casting around the spindle...
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