http://forum.73-87chevytrucks.com/smforum/index.php?topic=19493.0 WebFront Pump To Case O-Ring GM TH375 TH400 TH475 3L80 HD Transmission All Years. Brand New. C $13.89. Top Rated Seller. Buy It Now. +C $21.85 shipping. from United States. Sponsored. TH400 4L80E TAIL SHAFT BRAKE DRUM HARDWARE BRAKES TH475 TH375 CHEVROLET RV TOW.

What is a TH-475...? V8buick.com

Web19 Mar 2016 · These are some pictures of a Heavy Duty TH400 case. The first 2 pictures shows the 8 bolt holes for mounting the front pump assembly (TH475 models only) . The third and fourth pictures show the extra strength on the flange to mount the aluminum torque converter cover and the support it provides for the transmission. The TH475 has a deeper pan which requires a little bit more transmission fluid. The minor differences are the longer pick up tube and the 1-inch thick bushing spacer that helps push the filter a bit lower. The TH475 also has the HD cast into the bell housing and a six-bolt torque converter. TH475 vs TH400 See more This transmission model has a 3” deep pan and requires about an inch longer pick up tube to make sure the fluid gets to where it needs to be. Plus, this model has … See more Externally, the two transmissions are exactly the same. They look alike and should install about the same. It is where you can’t see that has the differences … See more The best that can be said in this type of comparison is that the TH475 is more of a heavy-duty transmission than the TH400. After that, there is no real … See more Every part will have its weaknesses. The TH400 has a share of its own although they may not be major faults. One problem is the early shift and lower efficiency when … See more gliding dream meaning

Turbo 400 TH400 Transmission

Web17 Aug 2015 · The 3 speed transmission fitted to most of our motorhomes is a HD version of the TH400, or 3L80, and is called the TH475, or 3L80HD. I am told that the main difference between the 400 and 475 are straight cut planetary gears instead of helical cut. This makes the transmission stronger, and able to take the weight of the motorhome. Web31 Aug 2008 · 27,694 Posts. #2 · Aug 30, 2008. trkklr77 said: a 475 is the same as a th400 but with straight cut gears internal. gut it and report back. if it is stock it shouldnt be, 475 … Web19 May 2011 · There are two significant variations of the TH400. The TH375 was a version of the transmission used from 1972-1976 in smaller displacement cars. It is identified easiest by its "375-THM" designation cast in the underside of the tail housing. The TH475 was an extra-heavy-duty version, and was found in larger trucks from 1971 on. bodysuits sheer