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New Heavy Duty Muncie 4 Speed Case Kit by Super661 - 1 " Countershaft Shaft Only:
$625.00
The Super661 HD Muncie main case replacesany Muncie 1 inch style main case and is also a direct replacement for Autogear Supercases.The Super661 S-661 case kit comes with a new designed sealed front bearing, Redline gaskets, countershaft stabilzer plug, bronze thrust washers, mounting hardware, extended fit countershaft and Zero-Leak fill and magnetic drain plugs. CNC precisionquality machined case with extra thick mounting ears. Replaces GM case 3885010, 3925660 and 3925661. Use withour billet aluminum or nodular ironmidplate, part # 16-6020A or 16-6020 to complete your ultimate Muncie case upgrade. Case has provisions for vents as well as oil cooler lines.
- Low gas pressure\ castingyields higher density and uniform wall thickness
- All cases are X-ray inspected to check for voids, cracks and porosity
- Provisions for oil pump return
- Provisions for a case vent
- Machined for thru venting into tailhousing ( using our midplates)
- Smooth internal contours and surface to reduce parasitic drag
- Internal case contours designed to keep more oil up front
- Dual side cover dowel pin locations ( use with our billet sidecover )
