4L60 sunshell

The original reaction sun gear shell is a major weak spot in the 700-Rand 4L60E transmissions. The sunshell , or the reaction drive shell. I was able to use the input swag, forward piston and housing, the reverse piston and some forward steels from this unit in rebuilding my Tahoe trans.

I went by today to collect the sunshell to return it and got the straight story from mechanic. The Sunshell is replaced around of the time when performing a rebuild on one of these models. They have been a great substitute for the beast , and save a little money on your build. IIRC, my POS Safari has a 4L60E. Only left in stock - order soon.

Ships from and sold by AutoMaxx. The Beast is one of the better ones and probably the best known. A chronic problem with both OE and thicker aftermarket shells is failure of the rear planetary bearing.

Sun Gear Shell Failure GM 4L60E Automatic Transmission. Try not to run or drive the car or further damage could result. RR: Will not work in 2nd or 4th gear : 2-band is slipping. What is the sun shell in the transmission? Vehicle goes forwar does not shift real well but does shift, and dip stick registers full.

Female, its Christmas and lil to no funds. I had a Monster Transmission Beast sunshell put in mine. It is supposed to be better than the factory welded ones because its thicker and is a solid forged piece rather than welded.

I also had a Transgo shift kit, new valvebody, new steel valves to replace the plastic ones, and a heavier converter.

L60E Bearing Design Reaction Shaft Upgrade. Beast sunshell make this assembly the ultimate upgrade for. At the same time upgrade to the heavy duty much thicker stronger sunshell. No you do not need the transmission completely rebuilt. If the sunshell has a solid bottom, then.

Manage Your Account Configure users, managers and permission-based access, as well as manage your services. Auto Trans Sunshell (2) Auto Trans Throttle Valve (5). Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors.

These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain , providing three forward speeds plus reverse. This has been long known to be one of the weaker segments on the 4Lseries of transmissions and this modification makes for a. PATC Sells Transmission Sun Shells , Sonnax Smart Shell, Beast Shell. L60E Transmission You Can Count On. We have heavy duty TCS sun gear shells and more.

Increases clutch count from factory weak to awesome capacity holding 9! It features a low first gear ratio and an overdrive 4th gear making it a very desirable transmission for street strip applications. Although the two transmissions have a similar name and share cases and some parts, they are different. Not all ’vehicles got the 4L60E.

Rear-wheel-drive cars continued to use the 700-R but in keeping with GM’s new nomenclature, the carryover trans was renamed the 4L(without the E).

Great info will not find any better on the web did you read the 4lthread Wayne ? How can i tell what it is ? I was all happy reading your article till i got at the last sentence lol. If you are rebuilding a 4L60E transmission, get a good manual, either a factory service manual, or the ATSG 4L60E guide. Below is a list of the weak points in a 4L60E transmission. What makes a 4l60e better than a 4l(700)?

Until you get to the 4l65e, the differences. The Sonnax Performance Pack is a must-have for any heavy-duty vehicle and the very best foundation for high-performance. It is now considered to be one of the finest overdrive automatic transmissions ever produced.

L-E, 4L65-E, 4L70-E Performance Pack. Here at PerformaBuilt Transmissions, our goal is to engineer and build the toughest transmissions on the planet. We don’t just rebuild transmissions.

We systematically re-engineer each model to eliminate OEM flaws and to achieve the highest levels of performance. Common problems with the 4L60E transmission include the third and fourth gears not working, slow or slipping reverse gear and sudden grinding noise in second gear. Almost every rear-wheel drive vehicle manufactured by General Motors features the 4L60E transmission.

I have heard that when the sunshell goes ba there is a clunk. Does anyone know which other symptoms go with this? Have you ever suddenly lost reverse, 2nd and 4th gears in your street machine?

SPX Filtran has re-tooled the sun shell and. When using any thicker “Beast” style sunshell clearance must be verified. W e offer literally any part available for the 4Lseries transmission from nearly. Thanks for all the replies. I took the car out for another test run today.

Doing the engine brake tests I found that I do not have 1st or 4th. Also reverse is not engaging. I am starting to think that the sunshell is the problem. L80E Transmission You Can Count On.

TRANSMISSION DISASSEMBLY Place the transmission on a sturdy workbench. Remove the transmission mounting bell housing. The Torx fasteners used to assemble the bell to the trans have a T-recess, and are not only torqued to a high level but have had adhesive applied.

Common failures on 4L60E, problems any possible repair Problem Symptoms Possible repair Slow, slipping or no reverse “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. This is not a task for a bargain tool.