Transmission Diagnosis
An honest, expert diagnosis before any wrench turns. We pinpoint the real problem, and tell you straight whether it's a repair or a rebuild.
// EST. 1982 · CHATTANOOGA, TN
Chattanooga's transmission specialists since 1982. Honest diagnosis, expert rebuilds, and a 1-Year / 12,000-Mile nationwide warranty, because that's all we do.
ATRA MemberFollows the ATRA code of ethics
A+ BBB AccreditedAccredited & in good standing// THE JASON RANDALL PLEDGE
"We will not remove a transmission from your vehicle to complete a repair unless it is absolutely necessary."
It saves you money, it saves you time, and it's how we've earned Chattanooga's trust since 1982. You can trust us to get you where you're going.
What we do
An honest, expert diagnosis before any wrench turns. We pinpoint the real problem, and tell you straight whether it's a repair or a rebuild.
Slipping, hard shifts, leaks, no reverse, we fix what's actually wrong, and only what's wrong.
Transmissions torn down, inspected, and rebuilt to spec the first time, backed by our nationwide warranty.
When a unit is past saving, a quality remanufactured replacement gets you back on the road for less.
Can't drive it in? Ask about our towing special so a bad transmission doesn't leave you stranded.
Our warranty is honored at 214,674+ ATRA centers across the U.S. and Canada, covered wherever the road takes you.
Inside the shop
No mystery, no runaround. Tap through the exact path your transmission takes from the bay to the road, the same process on every job.
We drive it, pull the codes, and check fluid, pan, and pressures, listening for what your transmission is really telling us.
Covered, coast to coast
Jason Randall's Transmission Service is proud to offer a 1 Year or 12,000 Mile nationwide warranty, recognized at over 214,674 locations across the United States and Canada through ATRA, the largest transmission repair association in the world.
2022 E 23RD ST · 37404The shop on E 23rd
The shop opened on E 23rd Street in 1982. Jason Randall took the wheel in 2009 and put his name on the door, and the same promise behind it: every technician here is qualified, every diagnosis is honest, and every repair is built to last.
Transmissions are all we do. That focus is exactly why drivers from Hixson to Dunlap keep bringing us their toughest jobs.
Read our storyWhat drivers say
I have had great work done by Jason. I'll take all my transmission work to them in the future.
They are courteous, true professionals and stand behind their work. I HIGHLY recommend them.
Your personal interest in our well-being was most appreciated, I'd be one of your best salesmen!
Lots of rough cars over the years, and they all get great transmissions. Thanks, Jason.
Straight answers
It depends on your vehicle and what's actually wrong, which is why we start with an honest diagnosis, never a guess. A minor repair costs far less than a full rebuild, and you'll get a clear price before any work begins. Ask about financing on larger jobs.
Yes. Every rebuild is backed by a 1-Year / 12,000-Mile nationwide warranty, honored at over 214,674 ATRA centers across the U.S. and Canada, so you're covered even far from home.
Only if it's absolutely necessary. We pledge never to remove a transmission from your vehicle to complete a repair unless the job truly requires it, it saves you time and money.
Most rebuilds are back on the road within a few business days once we've diagnosed the unit and sourced parts. We give you a realistic timeline up front and keep you posted.
Yes. Ask about our towing special so a failed transmission doesn't leave you stranded. Call (423) 508-8621 and we'll get your vehicle to the shop.
We're a member of ATRA, the Automatic Transmission Rebuilders Association, and an A+ BBB-Accredited Business. We follow ATRA's code of ethics on every job.
Last updated June 2026
Where we serve
Get back on the road
Tell us what your transmission's doing. We'll give you a straight answer and a real price, no obligation.