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I'm ready to see that glide built. Always interested in the tips and tricks you come up with.

thanks for the video

What is the transmission with the brake drum worth I know where one is

Are you going to go over performance mods, too? I'm looking to build a high horsepower unit, but planning to use an Extreme Automatics TB valve body. Expecting over 1500 horse, with engine.

Great video! A shop tip that professional fleets follow; You must wait 1/2 hr minimuw after welding or heating anything. Its a very smart rule as most Heavy duty shop rules are! Thanks

Shawn what year is the thick lug center support on 400 and lug .Dia ?

Great video!!

Where’s everyone First!

Interesting! One question, what stall converter would you use with a stock 5.3 and a TH400, and I just plan on street driving?

can you share part # for housing you spoke about in this video please

Your videos are getting worse by the day. Please stop talking about weather reports, and what day it is, nobody cares. Just get to the meat and potatoes

great video thanks

great video thanks

Subscribed. Thank you for your time making this. You saved me some time and money

Any preference on early verses late ? I'm interested now in doing one for mine. 3500rpm gets old at 75 mph with a hater pipe when cruising for an hour.

Sean we all know your s*** on the th and 4L 80e rebuilding stuff but can you give us any good tips on growing the excellent mustache

What name brand is this

YESSSS! Some more 80e stuff!!

There’s no replacement for learning from someone who’s done something 100’s of times. Your videos are far more valuable than RUclips thinks!

Part # or link for that dipstick.

So what do you recommended we do after the traps with the throttle in a manual th400? Ive always just whomped the throttle a couple times until i slow down.

this is exact problem I'm having right now, your video make perfect sense I appreciate the great info.

hey shawn... i guess comments with links get deleted so here's the 3rd one... i used the center support bushing from a th400 for years to remove the case connector it worked almost perfectly but you had to clean out the gunk behind the four tabs to get to work well... but knowing you love tools look up fitsall TGM-HR gm harness removal tool .. ive used it for years and is probably the best tool ive bought yet.. havent broken a tab since and ease of removal is unbelievable

Hey Shawn I just built a 4l80e from a 2000 Chevy 3500 well the case was busted so I sourced a case and built it when I was checking low/reverse pins were close only 30 thousands difference I made the band tool to check the pin depth and I used a 7/16-20 thread and it says 2.5 turns equals 125 thousands travel I got roughly 3.25 turns and I’m wondering is that still acceptable I’m trying to use everything I pick up from you to be a better builder I put the longest of the two pins back in what are your thoughts

Love the transmission content. Looking forward to the 4L80E build. Thanks for sharing your knowledge.

Thanks I have been waiting for this !

Yes finally, cover it all tear down to rebuilt/ built maybe!!

The fan is not loud at all . No need to be hot while you work .

👍

Does anyone ever roll a sprague in a Lenco?? Or are they MUCH tougher than your typical TH-400?

ihave 3 3 acounts on you tube and all fllowing you your videos about th400 like gold keep posting

Shawn, thanks for sharing,that machine is cool to have a your shop 👍

Love your machine shop. Some nice knee mills and lathe. Excellent content.

Always love your content brother. Very informational and detailed

Shawn I saw a video or read somewhere of people with dump valve setups and problems very similar to those had problems with the o ring on the valves inside the dump blocks not holding up to the heat and as a result bypassing charge pressure altogether even with the valve not engaged. ATF transmissions had a similar problem with their o rings on their dump valves and they in turn fixed the problem with a high temp Viton o ring. Just wanted to share. Love your th400 and powerglide tech vids.

Another great video

Hey what’s the part number for the intermediate spiral lock. The larger one you show next to the case saver is upside down and I don’t believe you mentioned it.

Thanks for the info. You say you like Dextron III for the TH400 , my 400 it been build for Rock crawling application it will be safe to say change the fluid 1 a year

What Precision kit # is the kit with all the scarf cut rings encluded 400 Shawn!

When you showed the sfi wasn't the crank spacer facing the torque converter instead of the crank side? Just asking because I watched it a few times

Your content is always presented perfectly. Great stuff as always! Happy 4th!

But, when you have a Bridgeport style knee mill, you have the best drill press in the world! ;) I actually sold my big drill press after buying my knee mill. I just have all of my 3 phase machines hard wired to my American Rotary phase converter.

Great video Shawn. Happy 4th to you and your family 🇺🇸🇺🇸

I have a 1989 chevy c1500 with the TH400 and if I drive it easy it shifts nice but if I get on it a little it shifts hard. Do you know if this may be an easy fix? I just got the truck recently and it has 118000 miles and not sure if it's ever been rebuilt. I changed the fluid and filter. Ive been watching videos where people adjust it at the module and wanted to see what you would suggest I do? Thanks

What are common transmission forums sir? That I can learn more about my turbo 400 or ask some foolish questions myself? My shallow pan leaks and I haven’t found a solution even years ago when I swapped a new one in and gasket

This channel is a huge help for me and my 86 k20 , thank you!

I love that..i want one of those drills

Sean can the intermittent piston be cut down to put more clutch’s and steels in the pack

Hey Sean, can I ask you... I followed your th400 800-1000hp build Summit reverse valve body, In some situations it suits my combo to leave in second gear.. so i program the air shifter to perform the 1-2 shift at .001 after trans brake release. It only TB in first gear. what do you think, am i making a problem? Thanks!

I overheard a snowmobile mechanic commenting on 2-stroke oil that the best was to have enough in the tank. His son ran the cheap crap from Wally World in his race sled. Proper ratio or injection rate was far more important than brand or type (mineral or synthetic).