NV3500 Manual Transmission

The Zumbrota Drivetrain RMT290C-9 is a remanufactured NV3500 manual transmission specifically designed for 1996-1997 GM S10, S15, and Sonoma trucks equipped with the 4.3L engine and a 5-speed configuration. This transmission is built with an integral bell housing for enhanced durability and features a single rail internal shift mechanism with an internal slave cylinder. Zumbrota Drivetrain emphasizes quality throughout their remanufacturing process. Each transmission is subjected to three distinct quality inspections. An initial pre-inspection ensures the unit is free from case cracks and excessive wear, addressing common OEM core issues. During the remanufacturing stage, a second inspection verifies that all component parts meet OEM specifications. Finally, a post-build inspection confirms the transmission is assembled to Zumbrota's strict standards. Internal components receive thorough attention, including detailed gear wear checks, mainshaft straightness testing, and synchronizer performance evaluation. To guarantee operational readiness, all transmissions are dynometer tested and run through a series of real-life scenarios before shipment. Technical specifications include that it is a Getrag HM290 model with an integral bell housing, a single rail internal shift mechanism, and an internal slave cylinder. The length from the front of the bellhousing to the back of the shifter is 18.5 inches. Note that ratios may vary, and the Hollander Number for this unit is 400-04309.