(626) 810-2281  

We Install Jasper Transmissions Information Page

EnginesTransmissionsDifferentialsFuel & AirPerformance

Used vs. JASPER?Transmissions Authentic + USA


You may be tired of your old transmission slipping, leaking, or have experienced a catastrophic failure in your transmission making it an urgent situation requiring your immediate attention, no matter your reason Craig Johnson Automotive in Rowland Heights has the right solution for you. JASPER® Engines & Transmissions has been "Perfecting the Art of Remanufacturing" for 80 years and is the nation's largest remanufacturer of transmissions in the nation. JASPER® remanufactures a complete line of transmissions backed by a comprehensive 3 Year | 100,000 Mile Nationwide - Parts & Labor Warranty that is fully transferable should you sell your vehicle. 

This option has proven to be the most convenient and cost-effective one for our Rowland Heights drivers and added value for their vehicle while adding peace of mind via the warranty. There is no stress in attempting to sell your vehicle or trade it in knowing you will get much less for it in the "need repairs" condition it currently happens to be in. 

The JASPER® Transmission replacement option is fast and allows you to keep the car or truck you have held so close to your heart for all these years. You know the trusty vehicle that got you to point A to point B, the one where you have all your settings set and radio programmed to your favorite stations. Not only do you love this vehicle for all its features and how well it has treated you throughout the years, but you are aware of previous maintenance and know what there is to expect, far less risk than purchasing a used car. Let's also not forget about the “soft” costs that are associated with a vehicle – license, insurance, and, of course, the taxes on the purchase of a new or different car, truck, van, or SUV. You’ll save on all of these by keeping your present vehicle and giving it a new life with a reman transmission from JASPER®. Just think, the money you save by keeping your present “ride” can be used for the other things that are important to you like saving for retirement, college expenses, that long-awaited big vacation, or putting more profit into your business.

All JASPER® Remanufactured Transmissions:

  • Are Dynamometer Tested 
  • Have been Remanufactured to Meet or Exceed New OEM Factory Specifications
  • Come without Surprises or Hidden Costs!
  • Come with a JASPER® Remanufactured Torque Converter

Why JASPER® Remanufactured Transmissions?

If the transmission in your vehicle fails, you as an individual or business are faced with a very important decision as to the repair options available to you. The question of how much it will cost generally comes to mind. The more important question, though, should be, “What should I do to get the best value for the money I spend?” 

Here at Craig Johnson Automotive, we have found that you should focus on VALUE & QUALITY because when you focus too much on price, you will find that the product may not meet your expectations. We become dissatisfied with our purchase and might even wind up spending more of our hard-earned money to get what we really needed to purchase the first time. 

There is a saying:  "Quality Lasts & Brings Value!"

A purchase decision based on value is especially important when considering a major vehicle repair like a transmission replacement. This is the car, truck, van, or SUV that your family or business depends on to carry out its day to day activities. Your vehicle is definitely one of the things you do not want to have an early failure. When you decide to purchase a JASPER® remanufactured transmission, you’ve made a value-based decision-based. JASPER® reman transmissions are built to the highest quality standards in the industry. JASPER® automatic transmissions are live-run dynamometer tested to be sure that they meet and perform to your expectations to provide thousands of miles of reliable service. Your family or business can depend on remanufactured transmissions from JASPER® for peace of mind driving. Instead, you can purchase a completely reman JASPER® transmission and get back on the road worry-free with a 3 Year | 100,000 Mile Warranty (Parts & Labor) from the nation's leader in the transmission remanufacturing market.

Custom Transmission Needed?  No Problem

The staff of JASPER® Authentic Custom Drivetrains, a division of JASPER® Engines and Transmissions, understands the pride and satisfaction that our customers have in the ownership of a classic vehicle. JASPER® offers custom “days gone by” remanufactured transmissions for your special project. The transmissions include Borger Warner Three Band, C4s, Dual Range, Dynaflow, Ford-O-Matics, Hydramatics, Getaways, Jensens, Roto Hydramatics, Powerglide – cast and aluminum, PowerFlights, and more. The Authentic transmissions can be found in Buicks, Cadillacs, Chevys, Chryslers, DeSotos, Dodges, Fords, Hudsons, Kaisers, Lincolns, Mercurys, Nashes, Oldsmobiles, Plymouths, Pontiacs, Ramblers, and Studebakers.

JASPER® Transmission Process

JASPER® provides an exceptional warranty on their remanufactured automatic and standard transmissions because every one of them goes through their extensive "Do It Right" process that ensures worry-free operation.   They also offer an optional Premium Service Plan which provides allowances for such items as towing, car rental, fluids, and premium labor should a problem arise.

Every JASPER® reman transmission is thoroughly disassembled then cleaned to remove contaminants that result in premature wear to gears, bearings, shafts, and other precision components like the valve body. Transmission cleaning includes individual component hand washing. Parts are carefully inspected and bushing surfaces are polished to a micro finish for extended bushing life.

As transmission technology advances, the need to maintain exacting tolerances becomes increasingly important which they are very thorough and precise. The machining processes are critical to assure proper operating pressures and provide for a long service life from your JASPER® Remanufactured Transmission such as:

  • Case and valve body resurfacing along with profilometer inspection of the shaft finish that enables JASPER® to maintain exact standards and precise tolerances in all phases of transmission remanufacturing.
  • The front pump and gears are carefully gauged and, if exact tolerances are not met, machined to assure they meet their high standards and precise operation.
  • Updates to specific transmissions such as the 5R110 for which JASPER® installs a machine-in-place bushing in the pump housing to provide correct alignment between the pump housing and converter hub.

Torque converters are cut open to allow for a thorough cleaning, accurate inspection, and the replacement of washers, spacers, springs, rollers, and a new or re-lined lock-up clutch piston as applicable. Turbine fins are inspected and retightened and welded on specific applications. Hubs are carefully inspected and replaced. Converters are pressure tested then dynamically balanced to eliminate vibration that could cause noise, leaks, or transmission damage.

Valve bodies are disassembled, cleaned, and remanufactured by skilled technicians. All components of the valve body are inspected for wear and the valve body is resurfaced for correct mating and sealing with the transmission case.

Valve bodies are tested on an Answermatic test unit which simulates actual vehicle operation. Vehicle speed and driver demand are varied hydraulically. The Answermatic quickly locates cracks and imperfections and verifies accurate shift points.

Transmission performance is pre-inspected at the assembly station to assure correct operation before additional assembly and testing is performed. Pressurized fluid and special fixtures are used to test circuit leakage.

JASPER® remanufactured transmissions receive a standard set of new and qualified parts. Their standard parts replacement assures smooth, consistent performance and long unit life. JASPER® remanufactured transmissions are assembled by skilled technicians many of whom are ASE Certified and who specialize in particular models or families.

Every JASPER® domestic automatic reman transmission is dynamometer tested with recorded inspections to shift patterns and shift pressures. A stall test, fluid leak test, lockup test (as applicable), and park tests are performed. Tests are made at varying RPM's and full and closed throttle positions. Standard transmissions are tested at the work station for proper gear engagement as well as for gear and bearing noise and proper engagement of the shift rails into the detents.

Consistent quality is maintained through a continuous training program of ASE technicians backed with statistical process control. Technicians are also JASPER® Certified for specific transmissions and job functions. Weekly disassembly of a production transmission is also performed. All areas of the transmission are scrutinized for cleanliness, surface finishes quality, lubrication, clearance, and wears patterns.

Our team of professional mechanics has the knowledge and ability to replace your transmission with one that will bring your car, truck, or SUV to life. Transmissions are intricate, complicated, and essential components of any quality vehicle, and not just anyone can do the job right. If you want a quality job done at efficient prices, contact Craig Johnson Automotive today.

You don't have to worry about your bill growing as more and more parts need to be machined or replaced, comb the junkyards for a used transmission, or trust your fate to a 30-day warranty transmission. You will have a great transmission - installed by a team of professionals and backed by a full 3-Year Warranty. 


© All Page Content. JASPER Websites Program by CMR Inc. Do Not Duplicate.

  • Jasper
  • 24-Hour Dropoff
  • Acdelco
  • Asa
  • ASE
  • Auto Pass
  • BF Goodrich
  • BG Products
  • Bosch Automotive
  • Bridgestone Firestone
  • Cooper Tires
  • Customer Savings
  • Dunlop Tires
  • Federated Car Care
  • Fleet Services
  • Goodyear
  • Handicap Accessible
  • Hankook Tires
  • iATN
  • JASPER Marine
  • Kelly Tires
  • Kids Play Area
  • Loaner Car
  • Michelin
  • Mastercraft
  • Motorcraft Parts
  • Pet Friendly
  • Radiator
  • RV Repair
  • Shuttle Service
  • Sumitomo Tires
  • Tech-net
  • Tires
  • Toyo
  • Uniroyal
  • 24 Month Warranty
  • Welding
  • Wifi Available

Craig Johnson Automotive

19140 San Jose Ave
Rowland Heights, CA 91748
Get Directions

location small (626) 810-2281
Email the Shop


Weekdays:   8:00 AM - 5:00 PM
Weekends: By Appointment

Make An Appointment

© Program, Brand & Specialty Pages, News Blog Content, Page Layout, and CMR EasyNews Programming by CMR, Inc a JSP Website or Top Auto Website

24-Hr Drop Form   |   ADA Accessibility   |   Job Application   |   Privacy Policy   |   Sitemap