Thanks to Capri, I also have the same tires. I did have the big block letters shaved off at DIAMOND BACK. They can make you any size WW on just about any tire you want.
Bruce
Not being a computer tech, this reminds me of when my brothers Dell needed a new power supply. Easy fix but he had to use the DELL power supply because they do something to the wiring to force you to use their replacement parts. This was 4+ years ago. Good luck and how good is your back up?
Bruce
Data from my 71 radio, if your interested:
Product No. 7933261
Service Model No. 11AFM1
Serial No. 1005632
Now, what's this one from????
Product No. 7935024
Service Model No. 34AFM1
Serial No. 1011663
I was told it's from either a 73 Buick Regal or a 72 Olds 88.
My father in-law said it was a take out from his old car but didn't remember what one. (He wanted an 8 track player!)
Bruce
On my 71 350 4BBL, there is a small vacuum hose that attaches to the passenger side of the carburetor as shown in these pictures. This hose then goes to the temperature sensing mechanism inside the air cleaner, that allows vacuum to flow when the incoming air temperature is below ? (don't remember~ 115 F.?) A hose coming out of that sensor then goes to the vacuum diaphragm on the snorkel of the air cleaner, and activates a door that diverts warmed air from the exhaust manifold heat shield / stove pipe. (See pictures) Note that I added an extra snorkel back in 1971 for more air flow.
71 350 4 BBL air cleaner pics
Like I posted above, mine (71 350 4BBL 350 THM) came off years ago and it runs great. It was a way to meet emission standards by leaving the vacuum advance basically plugged till it shifted into third or on a 4 speed, 4th gear. Leaving it hooked up, may hurt power and economy some. How much, I don't know? Many of our 40 year old cars have been modified and repaired so much, I wonder if any work correctly. Paul, I turned 4 in 1957.
Bruce
Good information. I think my TCS system came off on May 16th 1971. I remember some people complaining their vehicle took too much braking effort to slow down at highway speeds. I assume that's because the speed on the TCS was improperly adjusted higher than spec. The TCS system also energizes in reverse to allow you to properly adjust the "coast" idle speed. Good times!
Bruce
"My second issue is that the TH400 trans with floor shifter never would stay in first to race. it shifts on its own to second sometimes."
70monterrs
That's the way Chevrolet designed the THM400, to shift into second gear, at a higher RPM, (how much higher I don't know) even when it is locked in first, floor shift or column, doesn't matter. The THM350 is NOT built to do this so don't try it!
Bruce
Great write up Tim. At the last step "light cleaning" is a good time to blast the daylights out of them then powder coat or paint them. I remember doing mine over 20 years ago now and it's something I would rather never do again.
Bruce
Sounds good! My (8 year old DELL) crashed after we had a power failure several weeks ago. I reloaded everything and it was doing fine but now I'm starting to get several error messages, on start up, about files being corrupt. It is running all the items I use fine. I wonder if my hard drive is starting to fail!
Bruce
Just posting a quick test I remember using, to test for bad plug wires. When it's dark out, open the hood, spray the wires and cap with water with a mist sprayer (like a Windex sprayer) have someone start it, put it in gear (automatic trans) and brake torque the engine, look for sparks at the boots on both ends and along the wires. I remember my dad's 66 Olds 425 sparking like a Christmas tree when we did that years ago. It ran poor when it rained till I replaced the wires.
Bruce
Great! It was an easy install, but I twisted one of the belts and that took some time to un-twist it. They warn about that in the information sheet.
Bruce
My 71 was ordered with DELUXE seat belts. That option included the smaller brushed female buckles for two (of three) ft seat lap belts and a place to store the belts when not in use. Here are some pictures of the "storage device".
Bruce
Deluxe Seat Belt pics