TRANSMISSION SPECIALTIES
GM TH400 Planetary Gear Set 2.10-1.40 Ratio
SKU: TSI400-600
$2,188.99
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Planetary Gear Set - 2.10:1 1st - 1.40:1 2nd - 1:1 3rd - TH400 - Kit
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What this part is for
TRANSMISSION SPECIALTIES GM TH400 Planetary Gear Set 2.10-1.40 Ratio is a performance part builders add when the stock piece won’t do the job — whether that’s durability, flow, adjustability, or packaging in a custom build. Ask Grok with your year, make, model, and engine, or Call Us — confirm fitment once before you buy. Real people at Cunningham Customs handle the order.
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Comments & builder notes
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