Yes I know this has been discussed and ive searched and never got the answer on everything I need.

My question is what is every upgrade I can do to the 4l60E without trans removal. vehicle is a 07 NNBS 4x4. just hit 100k on the truck and it works flawlessly and want to keep it that way for another 100k. I tow between 4-5000lbs once a month.

So far I already have purchased
-TransGo HD2
-Vette Servo
-Sonnax billet 4th Servo
-TransGo HD Seperator Plate
-Torlon Check *****
-Mag Hytec 2 1/2+ Quart Deep Pan
-40k Cooler

Should I get Pinless forward and 3-4 accumulator pistons or pin type aluminum pistons. anything else you guys think I may need

 

You can use the pinless forward accumulator, but the transgo hd2 accumulator springs don't work with the pinless 1-2 and 3-4 accumulators
another good addition is the Sonnax heavy duty 2-3 shift valve.
You pretty much have every thing else covered.

 

thank you for your advice, I was told the pinless 3-4 accumulator works with transgo but 1-2 does not. but I ordered a few more items. im still up in the air on the pinless vs non-pinless tho.

new list of items I have or have ordered
-TransGo HD2
-TransGo HD Seperator Plate
-Vette Servo
-Sonnax billet 4th Servo
-Sonnax servo release check valve
-Sonnax 2-3 HD shift valve
-Torlon Check *****
-Mag Hytec 2 1/2+ Quart Deep Pan
-40k Cooler

 

ok guys, talked to a few people and they recommended to go with the pin type 1-2 and 3-4 and pinless forward accumulator. I ordered the sonnax pinless forward accumulator but when it comes to ordering the 1-2 and 3-4 accumulator I noticed a few different ones. can some one tell me which I may need. they have a :

accumulator piston, .235" pin diameter and a .308" pin diameter with or without legs