Review on 🔌 ICT Billet 4L80E Transmission Adapter Fitting -6AN Flare, Front and Rear Port, LS Engine Compatible 4l80e LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LS3 551124 by Loren Schmidt

They are a perfect fit for me! Don't know why someone has problems? I used them to replace a 4l80e with my 2006 GMC Sierra 1500 4X4. Later model 4l80e with rear return. Perhaps the dimensions of the fittings are different on the older 4l80? Also, whoever takes them off is dragging. These are pressure fittings, not locknuts. If you cannot understand this, then you should not do this work in the first place.