I like data, so I did some digging. These are the actual prices that I paid in 2018 vs what the same parts, from the same retailers, cost as of 4/19.
Retailer
Item
Item Number
2018 Price
2023 Price
Difference
Percentage
Increase
Summit Racing
Torque Converter
FTI-SB2400LT30
$211.25
$389.00...