TH400 Valvebody Install (Auto/Manual High Horsepower)

[@skywaves5175]

My second time I seen this. I picked up more tips second time around due to I am in the process of working on the valve body section of my rebuild. Thanks for your time and money spend to create a awesome video.

[@zAvAvAz]

What is line pressure? Can you get pressure at idle or in park down to 70 still? Great video instructions and details that tell me how and why this is a great cast iron auto/manual valvebody. For TH400.

[@DavidLouisVIP]

Excellent detailed video Jason, thank you for sharing your knowledge. 🙏👊

[@ATFspeed]

Glad it was helpful!

[@reidcrutchfield]

anyone else notice a crack at 7:02 in the case below the hole that was drilled to connect those oil passages? Or is that just the molding line?

[@keltecfan]

Great video. Thanks for sharing your knowledge

[@armandorodriguez2694]

Excelente video, gracias por compartir sus conocimientos!!! Me suscribo definitivamente

[@chrisbrehaut6632]

great detailed video, very informative. on the govenor what would be the purpose to have a spring on it that holds it open all the time. i purchased a use trans with the spring on the govonor and i don't know if its correct

[@keltecfan]

They used the spring to hold the governor weights in the fully opened position, which made it necessary to manually shift for changing gears.

[@warrenglover]

On the pump, did you have use 5/16 plug for 2 hole feed converter charge pressure??

[@samuelrodriguez8198]

Hello friend, I saw your video and I would like to get a question right, I took my th400 transmission to be repaired but it did not make the third change, I already changed the governor, modular, converter, and it continues the same, now to your great experience what will be the problem for which Does the third change not make the transmission? please help

[@gh-7714]

What is the cutting function next to the gear?

[@Pabkojdim]

Does the servo control the pin to the bands

[@warrenglover]

So. You didn't show on video that dyno do or road test? Show me automatic and manual do ?? I order your vavle body from you..

[@signorp]

Dear sir, After a while, the kit for my TH400 GM has finally been installed and back on the car. I have a problem because gear changes are unnoticeable and i think that the transmission is blocked in third gear. I drive at 120km/hour with engine at 3000 rev. Per minute. Even when i change gear with the gear selector in the car, it stays blocked in third. I select "L" or "I" and i may run at 120km/hour!! Do you have please any advice? Thanks a million for your helo Best regards

[@Whitty1yo]

i have a 39' travel trailer i wanna pull with my 85 square body 5.7 350 small block th400!i know this vaulve body will work great wile im pulling my trailer but my question is how will my truck act with normal day to day driving in town! will she shift gears normaly without lots of horse power making lots of line pressure?.......if the answer to my question is that its not recomended for just puting around town from light to light then what mods would u suggest doing to this vaulve body since its too late i already purchased it?

[@kevindrury8390]

Could I drill the hole for the pressure mod then use a stock valve body with a shirt kit.

[@TimothyGambino9085]

I’m doing a turbo build, but want the auto shift I’m worried about the 10 pounds of boost affecting the vacuum modulator. Will this kit fix that problem?

[@TimothyGambino9085]

Why would I want to have high pressure when I’m idling? Do you got offer something more progressive for a street and strip car

[@krugtech]

did you ignore a stripped vb bolt? nice job otherwise

[@SOU6900]

I wonder just how well this conversion would work in a 400 for towing 🤔

[@benl4707]

There's 1 way to find out! Either longevity or max it out

[@johnnybrigham8154]

Hi shawn john here 6 horseshoe clips john brigham 241 west hill rd unit 15a newington ct 06111 A couple governor tube filters any xl shirts? Thanks..

[@75zl1]

What type of grease is that?

[@benl4707]

Look up transmission assembly lube!

[@keltecfan]

Save yourself some money, I've been using petroleum jelly (Vaseline) for years. Works just fine

[@ronniecox109]

@@keltecfan works good put it in the fridge if its really hot.