th400 planetary overdrive

Gear Ratios.

Fits 2002-On.

The Turbo 400 relies on vacuum modulation based on throttle position and load, which affect manifold vacuum. GM Products 4L80E 4L80E Overdrive Planetary-Early. Introduced in 1964, the TH400 is an automatic shift, three-speed, longitudinally positioned transmission.

Pre-Owned. From the tiny bit of info I found on the internet, it looks like it's planetary drive like a gear vendors, but doesn't have an internal pump, so you're supposed to use the C6 transmission pump. TH400 Piston Overdrive Clutch. The TH400 is an aluminum cased three speed automatic transmission that was produced by GM. The TH400 or Turbo 400 is a good transmission that was used in several cars years ago. 3-Speed Max Duty Outlaw Lock-Up T400 Transmission Add a standard welded Lock Up converter for $2,750 or a bolt together Lock up converter for $3,750 ATI's welded Outlaw Lock-Up Converters provide 0% slip for up to 2800 HP while the Bolt Together Lock Up Converter will provide 0% slip all the way up to 4500HP.

. The Turbo 400's imposing demeanor is reflective of its brute ruggedness.

Shipping to: 98837. GEAR, TH400 GOVERNOR GEAR KIT 65-UP $ 8.00 Add to cart; A4LD OVERDRIVE PLANET GEAR NUMBER A56580 1985-1995 $ 158.00 Add to cart; 700R4 / 4L60E REAR SUN GEAR, 1982-UP

4L80E.

At about 2600 dollars (depending on model) the GEAR VENDORS is not the cheapest way for you to get overdrive but is by far the best. TH400 Ring Gears. $150.00 + $64.15 shipping + $64.15 shipping + $64.15 .

TH400 Seals- Front Pump. TH400, and Powerglide to the newer Overdrives.

TH400 Pan. This means that with a 3.55:1 rear gear, the overdrive drops the effective rear gear ratio to 2.66:1. TH400 Modulator. It uses the same first three gear ratios but adds a 0.75:1 overdrive. That's why we called John Kilgore Transmissions in Sun Valley, California. Monster uses this in conjunction with the TH400 planetary gearset to allow the gears . 6.17 x 2.48 = 15.31. jeff/21, Dec 26, 2013. John Kilgore has been building race transmissions for years, and offers a lower 2.75 First gear ratio planetary for TH400 . TH400 Servo Assembly. On a TH400 (unless it has straight cut planetary gears) the planets will try to thrust load against the case bearing and the center support. TH400 Planetary Overdrive An overdrive unit is designed to maintain cruising speeds of the vehicle while simultaneously reducing the RPM produced in order to better fuel economy and prevent excess noise and wear made by the various parts of the transmission. Options and Upgrades. You should have plenty of room for this without any cutting also. SHARE POST #11. Here are both transmissions gear ratios. That's a . TH400 MEDUSA Specialty Hard Parts.

His latest setup is a 400 in front, with a 700 behind, in a Chevelle, 454, not a slouch in the torque department. On the other hand, that 3,000 rpm multiplied by an overdrive ratio of 0.70:1 yields a cruise rpm of 2,100.

List price: $550.00. GM Muscle Car / Street Rod / Restoration 2-Speed / 3-Speed Automatic. List price: $550.00. It uses the same first three gear ratios but adds a 0.75:1 overdrive. Shift modulation. The TH400 transmission comes with a case made of cast aluminum alloy to give it strength and durability. Gear Vendors under/overdrive auxiliary transmissions Hot Rods, GM 3-Speed Automatic Performance Car/Street Rod. Contact Us 727-868-9462. An overdrive unit is designed to maintain cruising speeds of the vehicle while simultaneously reducing the RPM produced in order to better fuel economy and prevent excess noise and wear made by the various parts of the transmission. Since the 700 is essentially a 400 with an overdrive built into it, most critical parts from the 400 that were cheapened up in the 700 will fit the later trans, rollers, clutch hubs, etc, and will make a descent 700.

Restricting it to make 100 psi or whatever that thing wants will overheat it quickly. Product #: 279741. The overdrive feature is fitted to the fourth gear of the 700r4; this offers a 30% increase. TH400 Planetary Overdrive. Gear Vendors is an aftermarket, bolt on overdrive for the TH400 (and many others). 2.46 x 2.48 x 2.48 = 15.3.

Shipping. But the 1000 rpm drop is sure nice on the ears.

Overview of the GM TH400 Transmission.

Not the least expensive route but seems to be very dependable and strong.

$775.00.

TH400 Pump Gear Sets. Rear planetary setup. 200-4R PLANET, REAR, 1976-UP $ 93.00 Add to cart; 42RE, 42RH, 44RE, 44RH, A904, Ten Rear Planet Endplay Shims 12780-Z, (10) $ 13.00 Add to cart; 47RE 46RE 44RE 42RE Heavy Duty 6 Pinion Overdrive Planet Gear 15 Degree Angled Teeth $ 150.00 Add to cart; 48RE Front Planet Gear - 6 Pinion Aftermarket A22582G 48RE Only $ 249.00 Add to cart Ford AOD Conversion Packages. Keeping the underdrive gears and direct in the main case and then adding an indestructible planetary overdrive gear behind it keeps the entire package stronger. Swap that Powerglide, C4, TH400 or TH350 with one of our Overdrive Packages. Keeping the underdrive gears and direct in the main case and then adding an indestructible planetary overdrive gear behind it keeps the entire package stronger. The 4L80E is just a longer, heavier, overdrive version of the TH-400.

The power steering does not maintain any pressure, just circulates oil, unless there is some load on the steering. Typical 4L80E converter charge pressure during high load is usually around 100 PSI, with a maximum line pressure of 180 PSI. TH400 Servo Assembly. Description 12 roller sprag type, 4 gear aluminum overdrive planet, overdrive sun gear, overdrive ring gear, overdrive outer sprag race, overdrive center shaft with bearings and thrust washer.

Pre-owned Pre-owned Pre-owned. Save th400 overdrive to get e-mail alerts and updates on your eBay Feed.

Typical 4L80E converter charge pressure during high load is usually around 100 PSI, with a maximum line pressure of 180 PSI. 46580K - 5R55N 5R55S 5R55W, OVERDRIVE PLANETARY PLANET KIT, 24 TEETH SUN GEAR. TH400 Planetary Overdrive. Jeff Smith: The physical part of bolting this transmission in the car will be easy.

There's a slight weight gain with the 700-R4, which tips the scales at 155 pounds versus the 400's 134. 4L80E Overdrive Planetary (Early) This overdrive planetary assembly is redesigned with a billet steel drive plate to eliminate spline/housing failure in high horsepower and extreme applications. . It is highly regarded for its supreme durability. Welcome to Bowtie Overdrives, home of the worlds finest GM Automatic Overdrive Transmissions.

GM HydraMatic Powerglide, Th350, Th400 - all in shorty and long kits Ford C4, C6, Top Loader 4sp all in - shorty and long kits Gear Vendors is an aftermarket, bolt on overdrive for the TH400 (and many others).

Product #: 279740. The case is very smooth and its length sits at length of 24-3/8 long.

34580 - TH400 OVERDRIVE PLANET, USES SPRAG WITH 0.309" OD ROLLERS, 1991-01, GM Opens in a new window or tab. TH400 Regular Assembly. . I disassemble the rear output shaft from the output ring gear and clean and inspect the planets. so what you would have is diff ratio 2.46 x 1st gear in trans #1 x 1st gear in trans#2. Jeff Smith: The physical part of bolting this transmission in the car will be easy.

TH400 Nuts/Bolts/Fittings. Unlike the TH400, lube pressure doesn't raise rearward thrust. We have everything you need to make the conversion from the older TH350, TH400, and Powerglide to the newer Overdrives. GM HydraMatic Powerglide, Th350, Th400 - all in shorty and long kits Ford C4, C6, Top Loader 4sp all in - shorty and long kits Sign in to check out Check out as guest.

This gives 700r4 a higher speed ratio than Th400. 4L80E Overdrive Planetary (Late) This overdrive planetary assembly is redesigned with a billet steel drive plate to eliminate spline/housing failure in high horsepower and extreme applications.

On the other hand, that 3,000 rpm multiplied by an overdrive ratio of 0.70:1 yields a cruise rpm of 2,100. Captn_Jim Save

4L60E Conversion Packages.

TH400 MEDUSA Specialty Hard Parts. This means that with a 3.55:1 rear gear, the overdrive drops the effective rear gear ratio to 2.66:1. Update your shipping location. These overdrive packages add up to a much improved driving experience.

For more you may wish to check out: 4L60E VS 4L80E Differences TH350 vs. TH400

GM 700R4 7004R Conversion Package.

34580 - TH400 OVERDRIVE PLANET, USES SPRAG WITH 0.309" OD ROLLERS, 1991-01, GM. However, both . TH400 Planetary Overdrive. 4 Speed Overdrive.

. TH400 Nuts/Bolts/Fittings.

2nd is too much of a drop from 3rd & the 1-2 gap is even bigger. 100 PSI of converter charge pressure generates 89 pounds of rearward thrust on the overdrive planetary gearset, forward clutch housing, and mainshaft. GM Products 4L80E 4L80E Overdrive Planetary Late.

Not only will an Overdrive Transmission improve your performance, but it will reduce your fuel consumption by up to 33%.

Quantity: 4L80E Overdrive Planetary-Early. The TH400's high-level of adoption could be tied to its remarkable features, and it proved that people can . Th400 is not an overdrive transmission. Fits 1991-2001. The whole concept of Gear Vendors manual kits.

This popular transmission was found in GM's cars, as well as, Rolls-Royces, Jeeps, Jaguars, Ferraris, etc.

You should have plenty of room for this without any cutting also. TH400 Pressure Plate. TH400 Pan.

If you are looking to go with more than 500 horsepower, maybe the 4L80E is the right transmission for you.

TH400 Sealing Rings.

Friendly, Knowledgeable Staff Ready to Assist! Rear case thrust bearing . This model has a conservative rate of 450 ft. lbs of input torque, though that can be easily upgraded with aftermarket improvements.

lightest and strongest planetary on the market .

I just won an ebay auction on an American overdrive. The 700R4 did not seem to help my mileage much because of a big cam and lower rpm don't go well together--no problem with power just the gas gets pushed out both open valves by the supercharger on overlap!

It is best to adjust rear endplay on the tight side.

The overdrive gives a better alternative to direct drive, stepping up the gear ratio of the car. It fits on the back of a NP205 transfer case. With a TH350 or a TH400, your car would be turning about 3,000 rpm at 70 mph.

1965-UP GM CHEVY TH400 TH375 GEAR VENDOR OVERDRIVE BRAKE TYPE HOUSING WITH SEAL. This TH400 is the largest of the common GM automatic transmissions, however, the transmission still maintains a compact design. If a 700 is built by a GOOD trans person who knows the tricks, it will work just fine. Since the 700 is essentially a 400 with an overdrive built into it, most critical parts from the 400 that were cheapened up in the 700 will fit the later trans, rollers, clutch hubs, etc, and will make a descent 700. Gear Vendors under/overdrive auxiliary transmissions Hot Rods, GM 3-Speed Automatic Performance Car/Street Rod. TH400 Pump Gear Sets. Fits 2002-ON. GM 2004R Conversion Packages. If you are looking to go with more than 500 horsepower, maybe the . Add to cart. U.S. GEAR 1991-UP GM TH400 4L80E 2WD US DUAL RANGE OVERDRIVE KIT HOUSING M-10 Opens in a new window or tab New (Other) $385.00 Buy It Now +$11.94 shipping Sponsored 1965-UP GM CHEVY TH400 TH375 GEAR VENDOR OVERDRIVE BRAKE TYPE HOUSING WITH SEAL Opens in a new window or tab This overdrive planetary assembly is redesigned with a billet steel drive plate to eliminate spline/housing failure in high horsepower and extreme applications.