4L80E- Best year?
#12
13 Second Truck Club
iTrader: (7)
Most of the ones in an Express van behind the 350, 8.1 and Duramax will be 4L85Es with 5 pinion planets. The one behind my 350 in my Express came out of a 2002 8.1 G3500 Express. A little more gear whine in the lower gears but the planets are much stronger. Some of the older big block motorhomes also had 4 pinon straight cut planets that are stronger as well.
edit: Mn8 rpo code for 85e just looked it up
Last edited by trxmxzx; 03-11-2017 at 07:38 AM.
#13
TECH Enthusiast
so the rpo code says MT1 which comes out to a 4l80e but it's possible it has a 85e? 2000 3500 savanah with 350. It definitely whinnied in lower gears.
edit: Mn8 rpo code for 85e just looked it up
edit: Mn8 rpo code for 85e just looked it up
#14
TECH Resident
iTrader: (4)
Instead of making a new thread, can someone help me with the yoke?
85e I discussed earlier from a van. Came with slip yoke that has the weep hole. The "cup" on the output shaft leaves very little engagement splines for the yoke. It may be plenty strong enough, but can I remove that cup and just run the yoke? Could I weld up that pin hole, or does it need it for the in/out movement?
85e I discussed earlier from a van. Came with slip yoke that has the weep hole. The "cup" on the output shaft leaves very little engagement splines for the yoke. It may be plenty strong enough, but can I remove that cup and just run the yoke? Could I weld up that pin hole, or does it need it for the in/out movement?
#16
TECH Resident
iTrader: (4)
There's no bolt hole on the output shaft and this is the original yoke from the van. I won't be making huge power but it seems like more spline engagement the better. I forgot to check if this yoke could even slide in further with the seal and extension housing on there. But I'll be making a custom driveshaft so I would like to get it right the first time