FWIW
0 231 115 072 (a JFUR4 type)
The 115 072 was used in the 1600, 1600-2, 1600, 1600 Touring, 1602, and 1800
possible shaft donors:
115 072 was the first replacement for the 0 231 115 048 (JFUR4) used in the 1600, 1600-2, 1600, 1602, and 1800
Other JFUR4 or similar vintage JFR4/JFUD4 dizzys:
115 045, 129 026, 129 033, 180 004, 115 071, 115 081