The stock E30 differential cover was never designed to handle the abuse of boosted applications

Whether you're building a stroker

Cost-effective insurance against chassis failure

Ideal for: Track cars and aggressive street builds

whether you're aiming for street dominance or track supremacy

BMW M52TU Short Block Assembly Service 8060 The stock E30 differential cover5150 AutoSport Short Block Build Service for BMW M52TU Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. When your BMW engine needs to be built right the first time, 5150 AutoSports Short Block Assembly Service delivers the precision, consistency, and experience demanded by high performance BMW builds. This service is performed in house by BMW focused engine builders