Lock-Up Plug 31 Spline 1.375in Long
Secure checkout with Cunningham Customs LLC. Real people handle your order. Create an account to save garage, favorites, and addresses for next time.
Why builders shop this part at Cunningham Customs LLC
Looking for Lock-Up Plug 31 Spline 1.375in Long (SKU WIN6789)? Cunningham Customs LLC stocks WINTERS performance hardware for serious builds — street, strip, dirt late model, sprint, drag, and 4x4. Differential Lock-Up Plug - 1-3/8 in Long - 31 Spline - Hardware Included - Steel - Natural - Kit Notes: Fitment notes from listing research: We suggest checking fitment carefully — product data mentions: Lock-Up Plug 31 Spline 1.375in Long · Differential Lock-Up Plug - 1-3/8 in Long - 31 Spline - Hardware Included - Steel. Always confirm before you buy. Shop hot rod parts with Grok AI search and fitment coaching on every product page. Compare options, confirm applications, then check out securely — real people at Cunningham Customs handle your order, payment, and shipping.
Shop all parts · Search the catalog · Build guides · Camshaft help · More WINTERS
Questions about fitment or install? Ask Grok anytime, or Call Us at +1 (424) 447-8470. We're here to get the right part on your build.
Comments & builder notes
Share fitment tips, install notes, or questions. Customers, the shop, and Grok can all chime in. New comments notify the Cunningham Customs team for review.