How To Drive A Full Manual Valve Body Cummins!

[@FarmerSteveO]

It reminds me of the old days with the manual valve body THM 400 tranny’s and B&M style ratchet shifters. Man those were fun to drive, especially when you got on it hard slap shifting!

[@SUBI_PaT]

She definitely is a rowdy girl!!! The sound of a 5.9 is 🔥🔥 awesome video buddy as always

[@blown572]

Excellent video and explanation of what a manual valve body drives like. This is pretty neat setup, you are basically doing the work of a transmission computer. It's a lot of work to get to 4th gear though. I wouldn't like that setup in a drag truck, to much shifting inconsistency or missed shifts. Although, you would have the advantage of having total control over turbo spool. For daily driver/drag, it would be better to get an aftermarket Trans. controller, (like the ATS Diesel Co-Pilot) it offers adjustable control over torque converter lockup. There are other advantages he could of went over, but I think that would be a different more advanced video.

[@skylersmall6322]

So can you take off in 2nd gear then? That would be great for icy roads.

[@Dieselfueladdict]

5.9 Driving clips are 🔥🔥🔥🤘🏻🤘🏻

[@burnout245]

That's dope! Powerstroke guy here but, just saw a funmins video with the rachet shifter and I was like, I need to know how this works lol

[@Golden_6.7]

This video was really helpful I’ve been considering 48 swapping my truck but didn’t know if I wanted to do fmvb I do daily my truck but it’s to work and back and that’s like 20 minutes both way all highway

[@chrisrigsby8935]

Excellent video I’d say! Almost makes me wanna do this now if I decide to 5.9 swap my F-150

[@FrankBUILTperformance]

FMVB ftw!

[@BADBUSA71]

Thank for the video, this was the best explained non reverse manual lookup video. I have a question and it may help others. My question is this 1 2 3 TCL Overdrive upshift Overdrive TCL off 3 2 1. Or should down be TCL off Overdrive 3 2 1? I just installed a Killduff with the two buttons for OD and TCL. Really appreciate your input. Thank you. Subbed.

[@jerryhaveman5659]

I have a FMVB 48 as well. ive got about 10k miles on it, normal daily driving i do 1,2,3, OD, TCL, slowing down is TCL off, OD off, 3rd. come to a stop, then back to 1st to take off. I Do OD to 3rd locked down shifts but only on decel with my exhaust brake. I think the problem would be locked down shifts under power.

[@xfactoroutdoor]

do you still have cruise control with that wheel

[@Thoroughly_Wet]

I'm certain there's a way to rig in the ability for the converter to unlock on Down shift. I remember a buddies dad talking about it. Should've been paying attention

[@213spaceforce]

$5 latching relay tied to the brake switch with a .15 cent diode an a momentary swith instead of a toggle

[@code10garage94]

Awesome bro!👍🏼…I am thinking of doing that to my 6.7 or Alison swap!…Aloha🤙🏽

[@thee_ole_24v]

48re swap with all billet internals with manual valvebody just spend the money once.. Don't go Allison=junk.

[@wyo_garage20]

@@thee_ole_24vNo one takes you seriously calling the Allison junk. It is FAR from junk

[@thee_ole_24v]

@wyo_garage20 I have 2 trucks a blue 03 cummins pushing 800hp and a 04 cummins capable of 1500hp. I'm well aware of what's complete trash and what is not 🤣 gtfoh buddy. Allison/ aisen is complete hog shit for cummins platform.

[@bluegrasskid]

Anyone ever heard of an B&M Modulink which is a cable operated modulator valve?

[@chris_wood0131]

Where did u get that kit and what’s it called I got a 08 6.7 I would like one of those

[@bryandepiazzy8679]

What grill on that truck

[@davidcovan607]

What shifter and how do I install 1

[@justinsinger6420]

I'm coming from a manual and have never driven a fmvb auto. Do you have to let off the gas when down shifting?

[@Xelaon]

no

[@smittengeoduckk5170]

So do you have a clutch with it

[@mnow2468]

Looking at a truck that has this style of shifter and I’m new to this can someone explain the lock out process? And exactly what it does and why it’s needed?

[@jerryhaveman5659]

I have a FMVB 48re like this guy. not sure what lock out process you are referring to. With the TC (torque converter) it is normally unlocked, meaning it is slipping, similar to slipping a clutch in a manual transmission. The TC has a clutch inside that when pressurized is pushed against a plate, thus locking the TC making it turn as one unit -no slipping-. like when you fully let off the clutch pedal on a manual transmission.

[@coleknight7529]

Can you run first gear through overdrive clutches?

[@BrandonWalus]

You know what I was just wondering this myself 😂

[@213spaceforce]

Iv been abusing my home rebuild fmvb for years, theres a company that sells a valve body plate to have 1st an 2nd gear lock up with out the jb weld mickey mouse for around $20

[@bradynewberry193]

What does it mean when you go from 3rd then get “locked up”? What are you locking?

[@rykenames5520]

He’s locking up his torque converter

[@aaronalvarez2646]

What kinda MPG you get with the 48 and only having 3 plus OD and higher RPMs?

[@jerryhaveman5659]

I run a FMVB in my 06 CCSB 4x4. light driving I shift from 1600-2000rpm, or roughly 2nd at 20mph, 3rd at 30mph, 4th at 40mph and TCL at 50mph. i get 13.5 to 14.5 with 33 inch tires.

[@davidcovan607]

How much did goin manual cost my tcm is bad on my 03 cummins

[@Valverde713]

Still need the TCM to work in order for it to shift. Manual valve body just allows you to tell it when to shift but all the electronics inside the valve body still have to do their job

[@coleclark7508]

What does “locking it up” do?

[@Ashroyer86]

Engine rpm to trans ~1:1. Just risk breaking stuff if running too hard.

[@chriswoodruff6574]

What shifter stannd

[@rickhurst4039]

Yo don’t need to unlock the converter to go into OD

[@DennyDiesel]

Correct never said that

[@roberttammerawitchey4652]

for daily-driving type shifting, I usually 'lift' a little on the throttle as it's shifting to OD. In my mind's eye, it's similar to the tcm not shifting to OD when throttle is still accelerating above a certain rate.@@DennyDiesel

[@davidcovan607]

Can you show me how to install the shifter my computer is screwed so I'm goin manual its cheaper

[@DennyDiesel]

You still need a tcm to run this setup

[@davidcovan607]

@Denny Diesel my tcm is fine my pcm isn't 2 grounds going to the trans aernt grounds they won't ohm out so my truck won't shift its stuck in 3rd

[@davidcovan607]

And wiring please

[@SUBI_PaT]

🔥🔥🔥🔥🔥🔥🔥

[@jefferylayfield5788]

Look into a lenco nothing but pulling gears .

[@paulbenderavich3833]

For everyday driving, no thanks. Sleds pulls and drag strips ,ok. I'll take a clutch pedal.

[@FrankBUILTperformance]

You get used to it

[@stocksgarage5575]

Dude I just swaped in a nv4500 5 speed swap and regret it. Manuals are slow af

[@FrankBUILTperformance]

@@stocksgarage5575 yeah manuals suck lol

[@blown572]

Another thing to think about manual transmissions shift slower and you lose vital turbo boost. But, a manual Trans. definitely has it's place too.

[@josiahjones5293]

​@Stocks Garage 4500 swaps were back in thr day before they could build reliable 2000 hp capable 47 and 48res nowadays the 5 and 6 speeds are the weak transmissions

[@kevo4515]

Im buying a truck comes one with seems easy learn but how do u reverse with it