Straub 346-3532 LS Crankshaft Spacer Flexplate Adapter for TH300/TH400/700R4/200R4

The Straub Technologies 346-3532 is a precision-engineered crankshaft spacer designed to adapt GM LS-series engines to pre-1997 non-LS automatic transmissions. This steel adapter enables the use of TH300, TH400, 700R4, and 200R4 transmissions with modern LS engines by compensating for the shorter crankshaft design of LS motors.

Key Features:

• Allows proper torque converter pilot engagement between LS engines and older transmission designs
• Constructed from durable steel with natural finish
• Mounts between the crankshaft and flexplate to extend effective crank length
• Essential component for LS engine swaps using pre-1997 transmissions
• Compatible with flat flexplate configurations

This crank spacer is a critical component for hot rod builders and engine swappers looking to mate LS power with proven vintage automatic transmissions. The spacer effectively converts the LS "short crank" design to function like the traditional "long crank" configuration, ensuring proper alignment and engagement of transmission components. Requires longer mounting bolts (sold separately) for proper installation.