If the others look worn or scrathed replace them too. Always replace the rear case, pump body and front stator tube bushings.Since you have the transmission apart anyway, just go ahead and replace it. Always use an aftermakret sun shell even if the OEM sun shell appears to be okay. Yes, we'd like to sell you one of our upgraded sun shells, that have been reengineered to correct the OEM defects, but even if you don't buy one from us you should really get one. OEM 700R4 and 4L60E transmissions had inherent weak points in the sun shell and 3/4 clutch packs.It is recommended that you replace all friction materials (clutches/band) and filter when doing a transmission rebuild.Servo, band, or reverse input drum failure Potentially anything that can rust (lots of parts) Radiator failure (cross-leaked into transmission) Planet Failure, sun shell failure, pump failure Slipping in or loss of overdrive or 3rd gearĬomplete loss of reverse/grinding in reverse Sudden loss of all movement, whining noise Large metal chunks in the pan (1/8'' or bigger) Rings Gears, Bearings, Bushings, Steels, Drums, Pump, Valve Body Steels (at least for the burnt pack), bushingsįine metal shavings in the pan (sand grain size) Symptom Rough Diagnosis & Potential Hard Parts to Replace Symptom Does the transmission use a bonded valve body plate? Does its pump use a wedge style or o-ring style seal? ( Year Range Chart).Are the pistons in the transmission molded rubber pistons or do they use piston lip seals? ( Year Range Chart).
#700R4 TRANSMISSION UPGRADES HOW TO#
How damaged is the transmission? What hard parts should I plan on getting before I even start to rebuild? (Refer to Symptom Diagnosis Chart below).Is the transmission you have a 700R4, 4L60E or a 4L65E? ( Transmission Model Chart).What year is the vehicle that needs the 4L60E rebuild? ( Year Range Chart).
Whatever the reason for your rebuild the information in this guide will help direct you towards the best 700R4/4L60E rebuild kit for your situation. O r, are you one of those people who are looking to do all of the above?.Is your transmission operating fine now, but you are looking to drop it anyway and do a high-performance 700R4/4L60E rebuild to handle heavy-load situations or really make those tires chirp?.Do you want to do a more in-depth overhaul and eliminate any of the known OEM weaknesses common in GM 4L60E transmissions?.Are you a guy rebuilding your 4L60E because you want to save time and money by just doing a basic repair that will get your truck back on the road?.
Why Are You Rebuilding Your Transmission? The first step in deciding what one of our 4L60E rebuild kits is right for you and your situation is you need to first figure out what's the main goal of your rebuild. This guide is a good starting point for a rebuilder wondering what type of rebuild kit they need for their situation. If you are asking yourself that question, then you are in the right place! There are many types of 700R4 and 4L60E rebuild kits on the market today, so it's hard sometimes for a rebuilder to find the correct kit to accomplish what they want out of their rebuild.
#700R4 TRANSMISSION UPGRADES DOWNLOAD#
What 700R4/4L60E Rebuild Kit is Right for Me?Ĭlick Here to Download this Guide as a PDF!
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