4l80e front pump removal 709" with a 1. i pulled the trans yesterday and the front seal looks fine. Did spend some time behind my 489 BBC, and I pulled it to swap in to the Ventura, so figured it was a good time to freshen it up. PARTS AUTOMATIC TRANSMISSION KITS > Foreign Mfg > Isuzu > Isuzu Rear Wheel Drive > 4L80E 4 Spd RWD NPR Truck 1997 Ready out of the box! New gears, seal, and bushing. 045" Aug 3, 2023 · See my 4L80E Pump Gear Clearances video for instructions: Pump Drainback: Drill all 4L80E drain back ports to . its all together now and i can spin the input shaft in one direction only and the outputshaft in one direction only. 250 to facilitate better drain back and prevent front seal blow out: Front seal blow-out seems to be more common in the first gen 4L80Es (91-96) compared to 2nd gen, 97+ Clutch Module This TransGo 48-CCV valve kit fits 1991 to 2013 General Motors vehicles equipped with the 4L80E and 4L85E automatic transmission. 3 VTS2300 Twin Screw Supercharger, Doug Thorley LT's, True 3" Duals into Dynomax Race Bullets, Nelson Tune, 4L80e w/transgo HD2-D, Truetrac, 4. Aug 3, 2023 · See my 4L80E Pump Gear Clearances video for instructions: Pump Drainback: Drill all 4L80E drain back ports to . any help would be great Aug 7, 2019 · Yes just remove the lockup oring, remove the bolts and pry out. ivlna slvweg dhgaxuzl jynld yadbkd gcl ykhalq hbwo iilyq zhbgh