shift kit

1995 4.0 4x2 Xlt Supercab new to me Had funky shifts, hated having weight in the bed, and long searches for reverse at 98k og miles. Fluid wasnt burnt or metallic. Big yay. No debris in the filter. Vb gasket? Rotted.. which is apparently normal. Epc and tcc solenoids? Out of permissible ohm...

I have an '87 a4ld, it takes it a good while to go into drive gear when cold but goes into reverse REALLY hard like shakes the whole truck hard, thinking a shift kit will fix this as it dosent slip and goes up and down through drive gears fine and no noises or leakage, fluid is new as well as...