Author Topic: 18N347490 M-20 on eBay  (Read 1589 times)


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18N347490 M-20 on eBay
« on: November 30, 2011, 04:55:16 AM »

Seller: mrracing
Item number: 120799550092
Item location: Wisconsin, United States

Muncie M-20 4 speed transmission, 2-line input, 660 case, 1 pin, all numbers in the pics.  2.52 first gear, 1.88 second, 1.46 third and 1.00 fourth. You can confirm by the numbers if it fits your application. 10 spline input, 27 spline output. Case casting is 3925660 and correct tail is 3857584 - Side cover is casting number 3952648 - Bearing retainer is casting number 3915020 - Bench shifts fine in all gears. Everything looks decent inside, engagement teeth in good to decent shape and constant mesh sides are good for their age as well. Some slight patina color to the gears from sitting under a bench for so long as shown - Case and tail are in good shape with no cracks or stripped threads, except the tail has a small 3/4" notch in the webbing for shifter clearance as shown - Pics show all the numbers - VIN number is 18N347490 and date is P8S08 - Transmission appears to have been installed at the Norwood plant in a 1968 Chevy Camaro originally. Good trans to restore with a full rebuild and needs new syncros, they are very loose and one is even cracked and the shift keys are out - bearings skip and growl as well - good original core with good numbers as shown.


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Re: 18N347490 M-20 on eBay
« Reply #1 on: November 30, 2011, 05:41:34 AM »