I have a couple of questions about the Volvo 280 transom shield hydraulic trim unit as I am now searching for parts to put power trim on my project's Volvo 270 drive.

Is there any difference between the 280 T and 289 PT ?
If so~~
Is one better than the other~~or are we talking about the same transom shield unit ?

Did Volvo offer any kind of dash trim indicator gauge unit for the Volvo Aquamatic 280 T/PT ?
If so~~~ is it a mechanical push-pull cable system or electrical system ?
I really don't need a trim indicator gauge~~~but it would be nice to have that trim gauge feature.

Is there a generic aftermarket trim gauge system available on the market ?