Monster TransmissionReviews 49

Monster Transmission sold me a transmission for a 2017 Dodge 3500 on 3/15/22 for $5,205.59. They called on 3/16 and let me know they had to charge $1,017.61 more. On 4/19 they called and said my core was damaged in transit, $2,000 more. Unit gets shipped from their facility on 5/3/22. We get the transmission installed in June and the transmission shop could not get it out of second gear. After two weeks of going back and forth with Monster Transmission July 26 they approved my unit to come back for warranty work, I just have to pay another $358.33 for shipping. I received my bill of lading from them on 8/19/22, they work on the transmission and send it back on 10/13/22. My transmission shop gets the Monster Transmission back, installs it and trouble shoots it for 2 weeks. The transmission will leave second gear but bumps down the road. They suggest we bring it to a Dodge dealer. Truck gets driven 45 minutes to a dealer and stops moving. Dealer confirmed there is an issue with the internal transmission lines not holding pressure. Monster Transmission refuses to refund my money and now wants us to return the transmission again to their Florida location. Will stated they are willing to do the same repairs as last time but they will pay shipping. Will said he must follow policy, so I asked for his manager's information but they don't have phone lines. I would be insane for allowing them to try to repair their broken transmission again.

Don't buy anything from Monster Transmissions! I purchased an AOD transmission and it was failing from the first time I installed it. Leaks from the shift shaft and soft shifts. I contacted them and they made me rebuild my governor then told me to take it to a transmission shop, which confirmed it was a faulty valve body. The delay in their responses and actions they made me do caused it to go past the 30 day warranty and now told me to deal with my bank for the refund. They are masters at hiding from their faults and putting the blame and cost on the customer. A total waste of money and time. Go somewhere else for your transmission.

We purchased a car from a gentleman with a "Monster" transmission (200R4 MCP). The car had 3,200 miles on the new transmission. We started having problems with it shifting excessively hard.We realize that it has a level 2 shift kit, but it never shifted like this when we purchased the car. The seller told us at the tme of the purchase that he paid for a 3 year warranty. We called Monster to figure out what to do. They asked all the normal questions and then they said that there is no warranty. We asked why the builder of the car said it has a 3 year warranty. Their response was "to the original owner only". I said this car has approximately 3,500 miles on it now. Their response was "oh well" it is not warranted. I have since taken the car to a performance transmission shop that works on streetmod cars. When I told them the story about Monster, they said that is typical with them. They will try anything to have to pay for warranty items. It is going to cost me between $1,000 to $1,200 to fix their deficiency in a relatively new transmission. Monster's moto is " We build relationships". Funny if this is building relationships, their idea of a relationship is different than what most peoples definition would be. I even called 4 of the suggested shops that they list on their website. Everyone of them said bring it in and we will work on it, but it isvon a cash bases. Monster never pays their warranty bills. I have since been surfing the net about Monster. You will see a lot of unhappy customers. If you are considering Monster. I woyld reconsider. What a joke they are. BUYER BEWARE

I purchased a transmission thrrough monster and the following morning for reasons unknown to me my mechanic would not install the transmission. As a consumer I dont care why. I asked for my order to be cancelled and my money returned before 24 hours had even passed. I was told someone would call me back and get the refund procesed. Instead I got th manager Ben. Ben seemed like a good guy at first and acted like he was concerned and I went out of my way to put him in contact with the shop. Ben spoke with the owner and seemed to be willing to refund me my money. I talked with my mechanic again and decided to go another way. Upon speaking with Ben again I now have been told they wont refund 2500. 00 of the purchase price. For one year it will be held as a store credit. This should be illegal the product was never even shipped to me. I m not even returning a product just cancelling an order. They may build the best transmissions in the world but with customer service like this I wouldnt consider monster again for any of my projects and I will make sure everyone I know hears this story

Follow up: I had an independent transmission company look at the transmission purchased from Monster Transmission because I did not trust Monster Transmission any longer. They did say I could send it back but since charges for uninstalling and reinstalling still would cost me I chose not to send it back but to have a local transmission shop check it out. The results were that none,…did I say none of the clutches were new/replaced. In fact the 3rd gear clutch was totally burnt out. They did have a new shift kit installed. So this transmission build has now cost me over 6 grand not include the time the truck has been out of service time and the anguish I have suffered.
Previous review below
Since I'm not a celebrity I guess I fall to the bottom of the list. 6-8 week delivery as promised took 15 weeks. The mechanic shop installed the monster transmission only to find that the transmission was slipping. Monster told me to fill a form out for a claim. There should be no claim. There should be some knowledgeable person to talk to in order to have an actionable path forward. My truck has now been out of service going on 6 months. Poor service and not what was promised.

I ordered a transmission. Put it in, it didn't work. I thought I didn't align it correctly so I called them and asked them for a solution because of this phone call they will not warranty the transmission anymore. It turns out I installed it correctly I ended taking my truck to a mechanic that told me I installed it correctly, it's the transmission that will not work and needs to be replaced. So now because I thought wrong and it's actually their transmission that was faulty they won't warranty it. Horrible company and customer service.

I recently purchased a 4R75W from Monster Transmission with a shift kit. It was built beefed up and upgraded. I primarily use my F150, which is lifted and has off-road tires and all that good stuff for pulling my boat to and from the lake. It shifts great in the everyday traffic. It also shifts great pulling the boat and it's almost like it's not even like my boat is back there anymore. The customer support that I got from Monster Transmission was great and very informative on how things worked. How the core charge, shipping and returning the core works. It's just an overall great experience and I highly recommend Monster Transmission to anybody that's looking to get something to rebuild themselves or a new Transmission from them. I highly recommend Monster Transmission. Thank you.