Drop Spindles & Track Width

[SactoJim]

Hi All,
Been a long time since I've been on here!
Does anyone know FOR SURE what drop spindles are out there that DO NOT change track width? It seems many drop spindles will alter track width.
I believe that CPP has a 2" drop modular that doesn't change track width. Are there any 2.5" out there that don't alter track width??
I have an old school drop on my truck......dropped A-Arms and springs and am finally getting around to fixing that so suspension geometry is better. I cannot change track width one bit since my wheels have specific offsets. I figure I have about a 4-4.5" drop in the front. I've had this truck for so long that I don't recall the exact specs of the drop and want to keep it exactly as is. Thanks for any help.....Jim