700R4 & 4L60E Automatic transmissions specialists

How To Videos

Torque Converters

Precision Industries

AOD & AODE Kits

700R4 & 4L60E Rebuild Kits

For those of you interested in building your own Heavy Duty or Performance transmission, then you have come to the right place. I offer "very complete rebuild kits". They come with "everything" that is needed to do this right the first time. My kits offer you the best of both worlds, smooth part throttle upshifts, quicker downshifts, and very quick wide open throttle shifts. I offer these "very complete" rebuild kits from Heavy Duty to the Pro Street Elite. You can call me anytime at 909 795-1876 with your questions on what is required for your particular application.

In the rebuild kits, I have setup the options in such a way so that you cannot make a wrong choice. I am always improving (updating) the rebuild kits. Borg Warner has released an improved version of their 29 element dual cage sprag. The sprag elements are 12.8% wider than the original Borg Warner dual cage sprag. With a slight modification for better oiling, it looks like it will do very well. They come in all of the rebuild kits.

I am working on something new that will be offered in the very near future, Turbulator steels for the "overrun" clutch pack. There will be a "slight" gain in gas mileage by using them. They will come in all of the 700R4 and 4L60E rebuild kits when made available.

The latest GM "heat treated" sunshell has proven to be an excellent piece. In Rick Abare's 3,400 lb. mid 9 second 1996 Firebird (1.22 - 1.26 sixty foot, 9.50 - 9.70 ET's at 138 - 141+ mph) he has well over 2,500 passes without breaking or stripping the late GM "heat treated" sunshell. The Beast is a good piece, and I offer it in all of my Street/Strip, Pro Street & Pro Street Elite rebuild kits. The downside is that it is heavy, and they are not balanced. If you want to use the late "heat treated" GM sunshell instead of the Beast for your particular application, let me know, The GM "heat treated" sunshells are lighter, they are "balanced", and are offered in the thrust washer or bearing version styles.

With the technical information that I can provide, DVD/VHS videos, ATSG build books, and the tools for building 700R4/4L60E's, you will be able to build a 700R4 or 4L60E transmission successfully. You can always call me in the evenings or weekends with questions and for assistance, 909 795-1876, or email me at dana@700r4l60e.com

700R4 & 4L60E Transmission Specialists

With over 33 years of experience in HD to Strip only transmission building, I have found many solutions to making a Heavy Duty or Performance transmission do the job correctly for a particular application.

I offer the 700R4, & 4L60E, transmissions in the Heavy Duty, Road Race, Street/Strip, Pro Street, and Pro Street Elite. All transmissions are "dyno tested" and come with a "one year" warranty.

To get the best results with the Heavy Duty through the Pro Street Series transmissions, we highly recommend the Precision Industries or Edge torque converters for the 700R4 & 4L60E transmissions, both in terms of performance & longevity.

ATSG build books & DVD/VHS videos

General Motors Transmissions

I offer the ATSG build books for each transmission rebuild kit, as well as the DVD/VHS videos for most units.

700R4 Rebuild Kits 1984 - 1993 Camaro's, Firebird's & Corvette
700R4 Rebuild Kits 1984 - 1992 GMC trucks
700R4 Rebuild Kits 1990 - 1992 Impala & Caprice
4L60E Rebuild Kits 1993 - 1996 Impala, Caprice & Roadmaster
4L60E Rebuild Kits 1993 & later GMC Trucks & Corvette
4L60E/LS1 Rebuild Kits 1998 & later Camaro's & Firebird's

These are the ATSG rebuild books needed to build the following transmissions:

The ATSG rebuild books that are needed for the 1993 & up 4L60E & 4L60E/LS1 transmission
The ATSG rebuild book that is needed for the 1982-1986 700R4 transmission
The ATSG rebuild book that is needed for the 1987-1993 700R4 transmission
For other transmission ATSG rebuild books go here, ATSG build books

Due to the amount of email questions, I have added a Q&A forum for all of your transmission & torque converter questions. Feel free to post your questions at any time.

I have been concentrating on the problems of 700R4 & 4L60E, for several years now, and have come up with some "solid" solutions. By paying very close attention to details & clearances, and the right combination of parts, I and others using my rebuild kits have been able to get many vehicles in the 11's, quite a few in the 10's, and a few in the 9's successfully. This shows you what 4L60E's and 700R4's are capable of. So it can be done, and you can do it with the right parts & direction. View my Online Catalog

Ed Wright of www.fastchip.com is highly recommended to solve the computer problems of the OBD1 and OBD2 that are used with the 4L60E transmissions since 1993.

For the best in transmission oil for the Heavy Duty through the Pro Street Series transmissions, or any Extreme use, I recommend Lubrication Engineers Monolec 7500 transmission oil at www.le-inc.com/ This is not a synthetic oil.

I added a Q&A forum for all of your transmission & torque converter questions. Feel free to post your questions at any time.

I also carry a complete line of Heavy Duty & Performance Rebuild kits, along with Trans-Go Shift kits & Performance Shift kits for most of the other Chevrolet, Ford, & Mopar transmissions.

If you have any questions feel free to contact me at ProBuilt, Dana. 909-795-1876