The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-59 Keep the original speedometer.

**1project2many** · 02-26-2021, 10:06 PM

NP241J (Jeep) uses speedometer drive gears and cable. THM400 output shaft is same size and number of splines as NP241 output shaft. I would start by checking into using parts from one of these applications.

02-26-2021, 10:06 PM	#7
1project2many Senior Member Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,217	Re: Keep the original speedometer. NP241J (Jeep) uses speedometer drive gears and cable. THM400 output shaft is same size and number of splines as NP241 output shaft. I would start by checking into using parts from one of these applications.