The hump is taller than the transmission tunnel would be in a rear-drive C10 with automatic transmission, and the tall bits of the T56 fit this space perfectly. The transmission hump actually bolts to the floorpan it's an access panel to the transmission. Our C10 was also blessed with the benefit of having the "high-hump" floor. Reman-Transmission is the best source to buy a complete remanufactured T56 transmission unit. Stop searching for the perfect parts catalog while ending up with the wrong product. For the 19631972 C10s, American Powertrain mounts the shifter in the forward-most position so the shifter handle's throws will clear the factory bench seat in all gears. The remanufactured T56 can be expected to perform as well as the original equipment, adding longevity to your classic car or truck build. The T56 Magnum is a very versatile transmission for aftermarket applications because the shifter can be placed in any of three different locations on the top of the transmission case. In short, the SM420 is a great transmission for a truck with a little engine, but it's not suited for any sort of performance application, nor was it ever intended to be.Īmerican Powertrain provided the T56 Magnum, along with its installation kit, which includes an aluminum-transmission crossmember, hydraulic throw-out bearing, a flywheel and clutch kit, speedometer cable, and a cool shifter and cue-ball shift knob. Combine that with a 27-inch-tall rear tire, and from a standing start, you have to shift gears halfway through the intersection because the engine speed is racing past 4,000 rpm, yet you're only traveling about 20 mph. Second gear, plus the truck's 3.73:1 axle ratio, works out to a 13.42:1 final drive. Even the 3.60:1 Second gear is virtually useless with a potent small-block making anything approaching 400 lb-ft of torque. Other than that, it's not used in everyday driving. The SM420's 7.00:1 First gear was designed specifically to provide low-powered inline-sixes and small V8s extra mechanical leverage needed to get the truck moving when hauling a bed full of stuff. This trans is tough as nails and probably could crush rocks, but its gearing just isn't suited to the type of driving we will be doing with our 1967 C10. While the C10's stock SM420 four-speed is probably a worthy candidate to live behind a big-block, it's first and foremost a truck transmission. This high material strength allows the QuickTime bellhousings to be light weight while maintaining the protection you desire.Making 716 hp and 680 lb-ft of torque, our big-block demands a transmission upgrade. The QuickTime bellhousings are produced using a unique spin forming process which results in a very high strength material. This bellhousing is a universal fit bellhousing and is not vehicle specific. 6.1 certified which is required by many sanctioning bodies for cars running 11.49 or faster in the quarter mile. I, like so many others, looked for the cheapest route to do this. Give us call and we can guide you through the fitment process. LT1-LS1 T56 Transmission Conversion: So, I am getting ready to swap a T56 into my 440 dart. Some muscle cars will require tunnel mods to fit. QuickTime RM-6023Perfect fit for Big Block and Small Block Chevys with T56 LS-1 transmissionsThe QuickTime RM-6023 bellhousing connects a small block and big block Chevy engines to a T56 LS-1 Chevy, T-56 Magnum or T-56 Magnum XL transmission. Need a full kit for your car Hit the Request for Quote button to get a quote on a full installation kit. Utilizes OEM Style Starter Attachment / Placement.Fits Up to A 168 Tooth Flywheel And 11 in Clutch.Standard Left Hand Fork Or Hydraulic Bearing.Patent on 16 points of Bellhousing Design & Process.Note: (Transmission Mounting Bolts Not Included) Features: This high material strength allows the QuickTime bellhousings to be light weight while maintaining the protection you desire. Perfect fit for Big Block and Small Block Chevys with Muncie, Richmond, Saginaw, or TKO transmissions – SFI 6.1 CertifiedThe QuickTime RM-6022 bellhousing connects small block and big block Chevy engines to transmissions utilizing the GM standard pattern such as the Muncie, Saginaw, Borg Warner T10 and Tremec TKO transmissions.
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