I'm re-reading that thread myself and according to Dave in the first paragraph of this post: http://www.peachparts.com/shopforum/2793063-post309.html on the 300D my klima relay controls the WOT shift point so hopefully the new gasser trans will obey the 300D's klima relay and shift earlier for it's new diesel partner. It would be nice if that issue is solved that easily. That Dave. Even when he's not around he helps.

Anybody out there actually done a swap like this?

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89 300E "Benzer1" 15.924 Uncorrected
93 400E "Benzer3" 14.200 U.C.
95 E420 "Benzer4"
92 300E "Benzer5" 16.299 U.C. Future turbo CNG
87 300D "Benzer7"
87 300D "Benzer8"
87 300D "Benzer9"
87 300D/70 AMC Javelin "Sidewinder-Benzer"
87 300TD "Benzer11"
06 E320 CDI "Benzer12"
05 E320 CDI "Benzer12A"
71 AMC Javelin AMX 401 "Sidewinder"
74 AMC Hornet 401 "C.K.10" 13.63 U.C.
74 Bricklin SV1 "Presto" AMC 360 pwrd.