I don’t want my parts identifying thread mixed up with transmission talk, even though I started it.
What are the pros and cons to the TH400
What are the pros and cons to the TH400
CK5
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Educate me on the TH400
- Thread starter TJ1978
- Start date
You may know but just to say it out loud...
The trans pictured is a desirable "heavy duty" case. There are undrilled bosses on the flexplate cover flanges that can be drilled to accept the thicker aluminum cover (factory holes are threaded but I just used nuts & bolts to make it easy). It is also a deep pan version which has at least one drum with more clutches than a shallow pan type.
Even though it's a 2wd version, that length tailshaft will will fit a pre '85 figure 8 bolt pattern 205 with a short 32 spline input and the factory adapter.
The trans pictured is a desirable "heavy duty" case. There are undrilled bosses on the flexplate cover flanges that can be drilled to accept the thicker aluminum cover (factory holes are threaded but I just used nuts & bolts to make it easy). It is also a deep pan version which has at least one drum with more clutches than a shallow pan type.
Even though it's a 2wd version, that length tailshaft will will fit a pre '85 figure 8 bolt pattern 205 with a short 32 spline input and the factory adapter.
Pros - A strong, reliable transmission.
Cons- Very tall 1’st gear ratio, no overdrive.
Cons- Very tall 1’st gear ratio, no overdrive.
This is what came with the 69’ c10 I just acquired.
That's an 80's case
Is it worth getting rebuilt or should I look for a TH350?
I guess it depends on the use. People say the th400 take a noticeable amount of Jo to run it back other transmissions, I don’t know. I guess it depends on if you want heavy duty or regular.
What kind of torque you plan on putting through it?
The 400 w a couple minor mods during a rebuild can take 450-500 ft lbs.
More than that a few more upgrades are necessary for up to 600.... more than that your replacing input shafts, drums, etc.
Fairly simple to rebuild with a good book and careful assembly.
The 400 w a couple minor mods during a rebuild can take 450-500 ft lbs.
More than that a few more upgrades are necessary for up to 600.... more than that your replacing input shafts, drums, etc.
Fairly simple to rebuild with a good book and careful assembly.
Nothing wrong with a 400. Good strong trans. will tow, haul, stand up to a big block That is a nice trans. It may not even need a rebuild. They do take more HP to run, iirc @ 35 hp and the TH350 is @ 13 hp. Dragster or gas mileage TH350. Tow haul Big Block th400
I guess a previous owner wanted to race the vehicle but never got around to it... so it sat, taken apart for almost 18 years or so.
Ok, I’ll make a build thread in a bit...
