I’m not alone when it comes to properly upgrading an early 700R4 or 4L60E Chevrolet automatic transmission. Most shops use some sort of upgrade kit during a rebuild to improve every aspect of the transmission. The most competent transmission shops use the most reliable and time tested brands. Brands that stay on top of cutting edge technology in the quest to keep you outfitted with the newest updates, they never become dormant in regards to improving the products. Research never ends.
My favorite kits were made by TransGo and the kits we used were Junior Reprogramming Kits during a rebuild. The junior reprogramming or shift kits are mainly to improve factory weaknesses and eliminate soft shifts, poor quality shifts, lubrication problems and generally bring your tranny back to a better state than when it was new.
Many times a smart consumer, particularly a commercially used truck would bring their vehicles to us before a transmission problem occurred and we would install the bulk of the kit and an auxiliary transmission cooler. Other than performing regular preventive maintenance, we rarely saw these transmissions for repairs or replacement. Synthetic automatic transmission fluid was our primary replacement fluid for durability purposes.
Something I recommend with much emphasis is, installing a Junior Shift Kit is convenient and smart if you are in the process of replacing your transmission with a used unit. When I mentioned this prospect to Brian of Gottransmissions.com the other day, we both agreed it was a great idea. I am urging him to make these kits available to the customers that are interested. However, I recommend a transmission specialist do it.
There are many other upgrades offered by TransGo, if you need some advise on what kit to choose, ask me in the comment area. For a wealth of general and detailed transmission information read our GotTransmissions.com Blog.
[...] SK700-Jr is for the earlier 700R4 trannys. They (Transgo) have been around since about 1959 making upgrade kits and fix-it kits and suppling repair and diagnostic information to professionals since their [...]
[...] or for long. Realistically, you probably need a replacement transmission, preferably one that is rebuilt and upgraded [...]
[...] you are looking for if the unit you are contemplating is no good. Don’t forget, you can buy a remanufactured-upgraded T-700 built for your application for [...]
[...] upgrades seem to be endless, especially when you purchase a rebuilt transmission. The best time to upgrade [...]
[...] the applications it came in. Especially if you purchase a rebuilt transmission with the appropriate upgrades built into it. Observations made during my career as a re-builder and want to share with you on our [...]
[...] line is that a qualified rebuilder has to be able to read and have terrific comprehension skills to install update kits and understand [...]
[...] the test of time (conceived in the ’50s) and producing kits that really work. Trans-Go upgrade kits cut slipping time by more than 70% and at the same time improve the quality of the shifting action [...]
[...] presence I can only lay out some scenarios. The first thing I would do if the shop you used did the whole rebuild and upgrade job. In other words, you dropped the car off and they did the rebuild to the trans with the B&M [...]