Help -th400 slipping in D engages in 1&2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rou · 11-06-2013, 09:18 PM

The drivetrain sat for about 2 years during our resto. Got her running last month and ran great but leaks at the pan. I kept adding tranny fluid until I could change the pan seal, but two days ago it stopped engaging in Drive. It did work in 1 and 2. I changed the seal/filter and refilled fluid, still same problem. Slips badly in Drive but will catch in 1 or 2. Before I go to the transmission guy tomorrow, I thought I would go to you guys for suggestions.

Thanks, Rou

11-06-2013, 09:18 PM	#1
rou I can see the finish line! Join Date: Apr 2010 Location: York County, Maine Posts: 88	Help -th400 slipping in D engages in 1&2 The drivetrain sat for about 2 years during our resto. Got her running last month and ran great but leaks at the pan. I kept adding tranny fluid until I could change the pan seal, but two days ago it stopped engaging in Drive. It did work in 1 and 2. I changed the seal/filter and refilled fluid, still same problem. Slips badly in Drive but will catch in 1 or 2. Before I go to the transmission guy tomorrow, I thought I would go to you guys for suggestions. Thanks, Rou __________________ 1971 C20 402BB In the process of a rebuild now Our first Build - '71 C20 LWB Last edited by rou; 11-06-2013 at 09:59 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.