Mad Differential LLC

I had a very loud humming noise coming from my rear differential. I had just started a new job where I use my truck so I was in a bind to get it fixed. All the other shops said they would need my truck for 7-10 business days. I called Arturo on a Thursday and he said he would get there before they opened on Friday to start working on it. He said it may take 2 days but he had it done that afternoon by 4. His price was fair and he fixed all of my problems. He also gives a 6 month warranty on his work. Definitely use mad differential if you are needing some work done. They are the best in the business.

Went here to get my 456 gears installed by Arturo the owner. Told him also about a bad vibration in my differential. He test drove it and noticed it was a bad axle. Left the truck with him and he took care of me. He fixed my axle, did my gears with posi and also fixed a stuck lug nut on the front wheel without even having to tell him about the stuck lug nut. He went above and beyond and made sure the truck was fixed 100%. I highly recommend anyone to go to him for differential needs. Other shops told me my rim would get damaged because of the stuck lug nut. Arturo did it without any damage to rim. Saved me $600 from having to buy new rim. I will be coming back and referring everyone to him. It's hard to find an honest good mechanic like him nowadays. I'm really lucky I found out about Mad Differential

Got my 96 Cherokee in quick. Turn around time was only 3-4 business days. Fair prices. He had to order a new carrier for me and got it within 24 hours and installed. I drove it 40 miles home after picking it up. Jeep drove great. I’ve driven it now about 100 miles and I’m happy with. Thank you.

Found this place online by searching for the nearest differential upgrade performance shop. Man, I must say this was the best choice I made. The guy told me it would take 2 days and hey he got the job done in one day. I will recommend anyone to shop here. Great guy, fast installation. 5 stars

I searched for a good shop to do my front and rear differentials and came across MAD. Hit up the owner and he guided in the right direction on which gear ratio he thought would be best for my application. Ended up going with Nitro 4.56 ring and pinion gears with a clean PML diff cover. Truck is a 2020 f150 with super 8.8 rear end. They were fast professional knowledgeable and it performs flawlessly. If you need any differential work done and are thinking about taking it to a bigger more expensive shop don’t do it. The prices with MAD diff are also on point. All around great people great prices great service! Thanks MAD