This fluid is not just any fluid buy its the only fluid I would run. Plus it's always best to run the transmission fluid the company building the transmission recommends.

Just installed a Monster 4L65E from Monster and it runs smooth. It's nice to have my Truck back on the road and with full power again. Shifts smooth and has zero discrepancies. Thank you Monster for a great product. Monster made this a simple task. Shipped right to my installer for me.

I have a 1963 Chevy II Nova SS Convertible that I LS. After doing a Brake Stand I Grenaded my 4L60E. I call up the kind folks at Monster Transmission and they hooked me up with a 4L65E Rated for 600 HP. Transmission is in route but Monster Transmission made this transaction Super Easy. Definitely recommend to anyone who is looking for a Quality Transmission with Great Service behind its Name. Thank you Monster Transmission.

Recently purchased a transmission and haven’t had any issues and the customer service was top notch

I received my 4l65e complete rebuild kit and boy let me tell you... It didn't disappoint. Best upgrade kit on the market. I'll definitely be spreading the word about Monster transmissions!

Fits well

Pretty excited for the transmission, will put it in very soon and have a update.

The sales rep was very helpful to get exactly what I need

Great

Great

Monster transmissions staff were very responsive and although there were some initial issues with pickup they were very quick to come up with a good solution that worked for everyone. Thank you

This transmission will make my truck a beast. they have fast shipping and there very helpful and friendly quality. I would buy from them again. thank you for being awesome.

I’ve put about 750 miles on my street monster 700r4 in my c10 and it’s been great so far. Transmission runs smooth and as expected. It’s nice to finally have overdrive and cruise on the highway at 1400rpm.

I have been working on cars since before I can remember, first time I ordered from Monster was 6 months ago and I could not be happier. Their 6L80e works like a charm! I went with their sportmonster unit to be safe, my Chevy 1500 is completely stock but I tow my boat with it and use it for work, the firmer shifts feel amazing and 0 problems so far! Thank you Monster Transmission!!