I have a 1964 Chevelle convertible. Several years ago I put a 700-R4 in it, which has never shifted correctly. It slips, doesn’t work right with the carburetor, etc. I just want to switch it out. What would you recommend as a good replacement—a TH400 / TH350, GM 4L80E, or what? — D.E. Jeff
Automatic transmission fluid (ATF) is a completely different beast than engine oil or manual transmission gear oil because it does way more than lubricate. (Want to read about gear oil? Check out this post.) Think about it. Automatic transmissions and transaxles are essentially hydraulic systems, complete with valves, check balls, solenoids, and pumps. ATF is
Q: I recently replaced the 305 engine and TH-200 transmission in my 1985 Monte Carlo for a 350 with a mild cam and a TH-350 transmission. My question is about the tranny. It was in a friend’s strip car, and had about 15 passes on it before I got it. The transmission has some kind
Q: I have rebuilt a 1984 Suburban 4×4. I replaced the 350 with a 402 big block with 10:1 compression, and rebuilt a 700R-4 transmission with a Corvette servo. The problem I have concerns the transmission. It shifts fine if you hammer the throttle or in open highway driving. But if you accelerate too slowly,
“We know a thing or two because we’ve seen a thing or two.” That’s the familiar tagline to the ubiquitous Farmer’s Insurance ad campaign, but it could easily apply to the guys at TCI Automotive. When it comes to drivetrain products, tech, and installation procedures, they know a thing or two. Or, in the case
We recently reached out to the guys in Summit Racing’s renowned tech department—the largest full-time staff in the industry—to identify and answer five common tech questions they hear on a consistent basis. With help from Summit Racing’s tech advisors and other industry experts, we’ll answer those questions here at OnAllCylinders. Today’s topic: transmissions. The specific
Watch this video from our friends at TCI Auto to better understand a flexplate’s role in automatic transmission operation. You learn how the flexplate connects the torque converter to the engine’s crankshaft, functioning in much the same way a flywheel does on a manual tranny. You will also hear about stamped and machined flexplates, how they provide an
Got questions? We’ve got the answers—Mondays when the Summit Racing tech department tackles your automotive-related conundrums. This week, we offer advice for choosing the proper gear ratio and performing transmission flushes. From: Jimmy Stevens, Jr. • Saltillo, MS Q: I have a 1981 GMC half-ton pickup with a 350 bored .040 inches over. It has
Life is filled with mysteries: Are we alone in the universe? What really happened to the dinosaurs? And what exactly is Lady GaGa? Although we can’t provide definitive answers to any of those dark mysteries, we can help you solve one of the automotive world’s biggest mysteries: the torque converter. In this installment of our
Got questions? We’ve got the answers—Mondays when the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re troubleshooting a starter and bringing a dormant vehicle back to life. From: Ron Brandelli • Oak Harbor, WA Q: The starter on my 1936 Ford street rod breaks every year. The copper stud completely burns out
Stay Connected