Highroadhauling

T2180B, water in trans, blown out oil cooler, can I bypass the oil cooler. Also guessing synchro is bad, grinding from high to low, is this a just replace the synchro and see or pull whole transmission and look inside type of job. Any help is appreciated, TIA.

Hello all, A Driver recently put a truck in a ditch, no roll over, just passenger side in ditch hard, checked all over motor, Trans, fluids, heads, everything appears undamaged and truck turns over but won't start, mack e6-300. What could I be missing?

Doubleclutchinweasel and Joey Mack how would I tell if bad maxi? On the exterior they all look okay

I have a 1990 E6-350 in an RD688S. Heard an air leak Monday from relay valve when brakes or trolley handle was applied. Also heard a leak from foot valve, replaced foot valve and relay, relay still would purge air anytime brakes were applied. Brakes continue going soft when loaded, feels like they are at only about 50%. Traced air lines back and no twists or kinks. Drained air tanks, then slowly started going through the system post relay, took old relay apart, it didn't look bad, not sure if anyone has had this problem?