Everyone knows what a transmission is, but when it comes down to the internals and how they work, the curve of knowledge drops off. We recently had the chance to check out Bowtie Overdrives and Maximum Offroad Transmissions in Hesperia, California, while we were getting some work done to our 4L70E.
Both transmission shops are under one roof and cover all of your needs. “Bowtie Overdrives is for street performance to high performance,” Chris Gardner explained. “Maximum Offroad Transmissions is for the off-road enthusiasts with anything from a prerunner to an Ultra4 rig.”
Bowtie and Maximum deal with only GM-based transmissions, sorry Ford fans. They can look at doing anything from a rebuild to making the proper transmission for your project.
“Bowtie Overdrives specializes in GM 700R4, 2004R, 4L60E, 4L80E, 6L80, 6L90, and Allison transmissions from stock to high performance,” Gardner said. “We have been in business 23 years, and were the first company to provide bolt-in conversion kits for ’55 and up vehicles including Camaro, Chevelle, Nova, El Camino, Corvette, GTO, and Firebird.”
If you are into playing in the dirt, Maximum Offroad Transmission is where to head. They have played a big part in the Ultra4 community, and usually have between 80 to 100 transmissions out during King of the Hammers, in all the different classes.
“Maximum Offroad Transmissions started as a hobby for some of the off-road community in 2009, before we took it full bore in 2010,” Gardner continued. “Maximum specializes in strictly off-road applications from competition rock crawlers to Trophy Trucks. We build Powerglide, TH400, 4L80E, 700R4, TH350 to survive the harsh elements of off-roading.”
We had the chance to check out the new shop and everything that was inside. They have service bays for transmission service and repair as well as CNC machines to make all the parts they need in-house.
Every transmission that is put together in the shop gets real-world testing before it is shipped to the customer. Gardner and his team put the transmission in the shop truck and take it for a spin. The shop truck has had over 11,000 transmissions run through it.