I pulled both my 722.3 transmissions this weekend. The neutral safety switch is accessible under the car on the drivers side near the shift linkage. On a 126 chassis there is prolly more room on that side so it will be easier that doing on a 124 (my 300D's). Removing the rear trans mount will lower the trans a few inches and possibly give you more room to work if you need it.

HTH,

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Brian Toscano