4l80e

1997 c3500 5.7 - about 6 months ago a vibration would start between 50-55mph, immediately replaced u joints and had driveshaft balanced. After the vibration was still there at 50-55mph I also noticed it around 70mph. Lead me to believe it was the torque converter. Well two days ago lost...

Lookin forward to q&a with y'all..

I have a 4l80e that I just had rebuilt upon taking it apart these spots were drilled by a pervious owner, the guy rebuilding says he can't seem to figure out why they were done. 1 is in the housing of the trans the other in half the pump. Any input would be greatly appreciated

Hi all, I have a 95 3/4ton ext cab long bed w the 6.5 and 4l80 and 4.10 rear limited slip. I was merging out onto the interstate today and needed to pick up speed quickly. I put the hammer down and struggled to outrun a semi truck. Once she gets up to 80 she cruises fine. Low speeds are fine for...

I have a 2008 Chevy 1500 short wide with a 2010 6.2 ls3 swapped into it I got a 2012 4l80e what all do I have to get since it’s a newer transmission with more electronics will the plug and play kits work like all the others years

Hey guys I picked up a 1994 Chevy 2500 with the 6.5 diesel. I got it cheap due to a mysterious transmission issue. It has the 4l80e and it refuses to go into overdrive or exceed 40mph. I pulled the codes and got 73 81 and 82 and if I’m correct are all transmission related solenoid codes. I’m...

hello all. I'm new to this forum page and am looking for help. I recently replaced the tc on my 4l80e. While I had the trans basically out I decided to take to completely out and put it on my work bench. I cleaned n check the valve body. I didn't take apart any of the solenoids I left them in. I...

I haven't been able to find anything online that can tell me exactly what all I have to change. I have a 92 k2500 4x4 with a bad 4l80 transmission, I have a good jasper rebuilt 4l80 out of a 97. I know the one trans cooler line has to be extended to the rear but I'm not sure what to do with the...

Alright, so I have a 2000 GMC K2500 (Classic) with a 4l80e, I've been having constant issues with it since I bought it. At first, the trans pan was leaking pretty bad, about a quart a day or so but it was my only vehicle so I just kept adding fluid and driving it. I've put a pan gasket on it...

OK I have a 2003 lifted silverado 2500hd crew cab 6.0 vortec, 4L80e trans that has always shifted pretty hard if I don't let up into 2nd gear. So I have mostly always left off the gas just in time for the shift. the rest of the gears seemed to be smooth. Just recently ive had my truck pop out...

OK I have a 2003 lifted silverado 2500hd crew cab 6.0 vortec, 4L80e trans that has always shifted pretty hard if I don't let up into 2nd gear. So I have mostly always left off the gas just in time for the shift. the rest of the gears seemed to be smooth. Just recently ive had my truck pop out...

Hi, can anyone help diagnose what's going on with this? 1997 Winnebago with 454ci Chevy and 4L80e towing a 4500lbs trailer/race car combo. It drove fine this morning, then wooshing sound, all normal for a while then the first big hill comes and it seemed to struggle kicking down. Pedal to the...

Jay the CPA brought up an idea that may see reality sooner than later it's sparked my interest for sure. Let's see if we can get more realistic information for such a conversion. I start with; ZF 8 SPEED TRANSMISSION VERSIONS FOR 6.5TD CONVERSION CONSIDERATION 8HP45/845RE 500 ft. lb. torque...