On the 1991 era 300 TE's, (124) the very expensive 4 matic transfer case had to be replaced between 70 - 100 K miles because of aluminum piston wear and internal leakage. I understand that they were rebuilt using steel pistons. Question: Will the rebuilt transfer case now last much longer and be normally reliable?

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'76 240D-Sold
'78 240D-Sold
'85 300 SD, 165K-Sold
'88 300 TE, 165K-Sold
'64 Porsche 356C Cabriolet- under restoration
'86 560SL 124K Miles-Sold
'94 320E Wagon, 74K Miles-128K Miles JUNKED
'06 E350 Wagon, 84K Miles
07 SL550, 14K Miles