Web10 Apr 2013 · If you want to check the govenor/govenor gear, it is the little 4 bolt cover located at the rear of the transmission, on the passenger side by the tail housing. Take the … Web3 Oct 2006 · 249 Posts. #2 · Oct 2, 2006. From the Summit Adjustable Vacuum Modulator instructions.... "To adjust the shift points of the transmission, disconnect the vacuum …
M1009 TH400 Modulator question SteelSoldiers
Web27 Sep 2024 · It went from a 350/TH350,with a 2:73 rear,to 455,TH400,with 3:08 rear. When I drive it,the transmission shifts way too soon. 1st gear is pretty much nonexistent,and it shifts into 3rd before you get to 25mph. ... I then adjusted the vacuum modulator by turning the screw all the way in,then backing out about a 1/2 turn. That made no difference ... Web20 Feb 2012 · Discussion Starter · #1 · Feb 16, 2012. I'd like my tranny to hold 1st gear a bit longer. It shifts from 1st to 2nd too quickly. Not sure if part of the problem is that I only … rto rockingham
TH400 Transmission Shifts points SteelSoldiers
WebThe B&M® vacuum modulator is fully adjustable and allows you to fine-tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum … WebTH400 Mechanical Modulator 400-40M ... Replaces the vacuum modulator with a direct acting valve connected to the throttle. You may also be interested in the following … Web22 Jun 2011 · A stock TH400 will not shift hard. As Everett pointed out you need to install a shift kit. A temporary fix for it shifting too early is to connect the vacuum modulator to ported rather than full time vacuum. It may not shift exactly where you want but it will delay the shift. To dial it in you will need the adjustable modulator. rto rent to own login