Front Strut Manufacturer ID

I have a 2005 Tundra DC w/TRD Off-road package. I'm the second owner. The first added +2 tires and swapped the stock front suspension, but I can't figure out who the manufacturer was. Anyone know who this strut was made by? Says "2.5" on the other side; assuming that designates a 2.5" lift. Thank you for any help.

 

2.5 is referring to the size of the shock body in inches. Maybe a photo of the SN to the right on that pic may help

 

Those are Donahoe Racing. Donehoe turned into Icon Vehicle Dynamics when the old owner Kreg got into some legal troubles

 

Thank you both for the responses. I'll probably replace with Bilsteins but not sure if I need any other parts to replace what may have been removed/replaced when these were put on. Or may see if they can be rebuilt.

Appreciate the quick history on Donohoe as well.

 

I would personally try to get those DR shocks rebuilt. They are a much higher quality than Bilstein. IVD should be able to help you with any parts.