The Mittler Bros. Outer Lineup Blocks (GM Car / Ford 8.8″) are precision-machined round tube alignment rings used in rear-end narrowing applications. Designed for GM Car and Ford 8.8″ housing ends, these outer blocks slip over the jig shaft and seat against the outside of the trimmed rear-end housing to ensure accurate, square, and true reinstallation of the housing ends.
Sold as a pair, these 2.250″/2.577″ outer blocks are included in both Mittler Bros. Rear-End Narrowing Kits and are also available here separately for builders who need replacements or are assembling a custom narrowing setup. Made in the USA.
