I thought $40 for a b&m shiftplus was outrageous so i built my own and installed it into the dash for about 10 bucks.
Info and diagram found here - B&M Shift Plus Revealed - Transmission Forum - j-body.org - the jbody organization
Parts needed
Switch - AC 6A 250V 10A 125V 3 Terminals SPDT on Off on Round Rocker Switch 2 Pcs | eBay - $3
5ohm Resistor(10w) - Gold Tone Aluminum Resistor 10W Rating Power 5 Ohm 5 | eBay - $4
27ohm Resistor(10w) - Chassis Mounted 10W 27 Ohm 5 Aluminum Case Wirewound Resistor | eBay - $4
Real easy and clean install, works great! Wire into same wires as real b&m and your ready to go
Info and diagram found here - B&M Shift Plus Revealed - Transmission Forum - j-body.org - the jbody organization
Parts needed
Switch - AC 6A 250V 10A 125V 3 Terminals SPDT on Off on Round Rocker Switch 2 Pcs | eBay - $3
5ohm Resistor(10w) - Gold Tone Aluminum Resistor 10W Rating Power 5 Ohm 5 | eBay - $4
27ohm Resistor(10w) - Chassis Mounted 10W 27 Ohm 5 Aluminum Case Wirewound Resistor | eBay - $4
Real easy and clean install, works great! Wire into same wires as real b&m and your ready to go