Yes.

Chevy made the 305, Oldsmobile made a 307v8 that was in the 1985 toronado. dextron fluid is what you want and if you have a leak it is probably pan gasket or maybe front pump seal on tranny-my front punp seal started leaking on my 1983 toronado at 300,000 miles with a 307

faulty wiring,ground. pick up coil in distributor,just change distributor. new computer and or mem-cal,computer chip. Only on the 3.8 engine-the cam shaft magnet.

3,853 lbs

P235/75R15 or P235/70R15

Yes, every toronado ever made was front wheel drive.

After much worry about my own blown and leaking heater core (85 Toronado) I at first by passed it, but with winter coming I HAD to fix it, but was unable to get anyone to do the job; and pulling out the entire dashboard and dropping the steering colume for a $20.00 heater core seemed to me to much....so here it is, first I do not consider myself a HACKER when working on cars and did make a very exceptical repiar by carfuly cutting a hole in the fire wall and pulling it out, you will be surprised how easy it is to cut this hole with a small chisel or screwdriver and a hammer CUT LIKE BUTTER!. I marked out an area around the heater hose's about 10"X10" inches and just (tapped on the chisel) all the way around. this worked better than I expected, so I pulled out old and in with the new, I was even able to put the peace of firewall back in place with some bondo and flat black spray paint the completed job hardly left a scare! saved me a ton of work. PS I drove the car another year before the motor died at almost 300000 miles, best car I ever had.....hope this helps....Todd

I didn't see a specific year year you're interested in, however a 1978 Olds 403 is listed as 18 degrees initial timing (detach and plug vacuum advance hose while setting initial advance).