GM 8634475 fourth gear lockup switch

[mred355]

Hi Guys. Not related to my GN; but hope to get help finding a transmission lockup switch for my 1988 olds Cutlass Supreme. The part number on it is 8634475 and it is a normally closed switch. All I can find are normally open lockup switches. Any help would be appreciated. Thanks in advance. Ed

 

[TexasT]

https://www.autozone.com/powertrain/auto-trans-clutch-pressure-switch/p/acdelco-oil-pressure-switch-8683502/921088_0_0

Looks like auto zone has one that might work

GM 08634475 Switch, genuine OEM part

Oil pressure (1 prong) GM genuine OEM part.

oemcats.com

This place sez they are superseded