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Interior / Re: Bluetooth radio
« Last post by Aus78Formula on Today at 06:02:33 AM »
Looks neat, possibly even better than the previous cd player!
Interior / Re: Bluetooth radio
« Last post by Angelo on August 02, 2021, 10:19:02 PM »
Here is the writeup of the install of the RetroSound Daytona M2 in my Trans Am so far. I will eventually be swapping in the 77 dash over the winter, but for now I have it in my 81 dash, but it definitely looks better with the 70-77 bezel.

RetroSound Daytona in 77 Dash:

RetroSound Daytona in 81 Dash:

Setup with white backlight color to match interior gauges

Added USB/Aux flush mount to the back of the center console, seemed like the best that didn't take away much from the rest of the interior.

(sorry images not loading because of the SSL cert on my site, will get it fixed later this week)
Interior / Re: Bluetooth radio
« Last post by Angelo on August 02, 2021, 09:14:44 PM »
Perfect timing. I just installed a retro sound Daytona for my soon to install 70-77 dash, fits awesome. I ordered with black knobs and then ordered a set of chrome knobs, using the chrome for the rear knobs and the black for the main knobs. Will post pics later tonight in my test 77 dash as well as in my current 81. I have an 81 dash for now and it still looks good though it is not intended for 78-81, it works with repositioning the knobs.

As b_hill_86 noted I would do the the same 6x9 in back (I like the 3 way style to get most sound out of them) and the speakers for the center speaker. I have am 81 dash luckily I have the two smaller speaker locations on the upper metal dash, otherwise I would do the same with the center speaker. Others have some speakers on the door panels and center console. It is your car, do what you want but I personally like when the car looks period correct as much as possible.
DriveTrain / Re: Proper size belts for 1978 TA
« Last post by Aus78Formula on August 01, 2021, 09:02:05 PM »
3. AC Belt GM #9433770 (58.5") - This also equates to 1485mm of your belt shown, it may be stretched and worn out.

6. Alternator Belt GM #15599208 (1230mm)

8. Power-steering Belt GM #9433753 (50")

1978 400 Firebird belts and pulleys by Aus78Formula, on Flickr
DriveTrain / Proper size belts for 1978 TA
« Last post by Murphy on August 01, 2021, 10:12:17 AM »
Could someone tell me the proper size belts for AC, Power Steering, and alternator for:
1978 TA 400ci
My AC and Alt are at the end for tightening and AC squeals when steeping on it.
Would like to put the correct belts on. Picture is the ac belt I have on.
thank you for any info on this. 
Trans Am Tech / Re: Emergency brake cable position
« Last post by Aus78Formula on July 31, 2021, 12:26:33 PM »
DriveTrain / Re: Radiator Help
« Last post by Stringer on July 31, 2021, 11:36:19 AM »
I can't steer you toward any company for a radiator but my advice would be:  Choose a good quality aluminum radiator that will fit in place with little to no fabrication. Choose either a single large fan or smaller dual fans. Then fabricate a fan shroud. Too many people forget about the shroud and then they have over heating problems and wonder why.

The shroud is very important to proper airflow and cooling. Without the shroud air moves around the radiator instead of through it. You need a shroud that is as small as the fan and as large as the radiator. This will ensure that air is drawn through the whole radiator.

Hope this helps.
Suspension / Re: Missing Brake Bracket on Axle (77 Trans Am)
« Last post by Aus78Formula on July 28, 2021, 02:03:06 AM »
Looking at your pic, BigBird, the bracket would need to go roughly where that spotwelded bend over tab is. I'll have to look up a few more pics to see what that is, unless you are able to see a mounting locating where it once was.

I found a few more variations of the already posted diagrams. Also, one that showed the mounting bracket located off the diff cover bolt hole, but being in the 1972 Manual was likely a carry-over from the 12-bolt diff diagram, similar to the link Brian posted. You know that yours is likely the original rear and a 10-bolt?
Suspension / Re: Missing Brake Bracket on Axle (77 Trans Am)
« Last post by b_hill_86 on July 27, 2021, 04:42:42 PM »
Those are great pictures! I hadnít seen that extra bracket before. I should spend more time digging through my manuals
Suspension / Re: Missing Brake Bracket on Axle (77 Trans Am)
« Last post by BigBird1977 on July 27, 2021, 01:46:44 PM »
Thanks for all the info and the pics.  Looks like I will need to get a "current" bracket, hammer and bend, and weld a new one on....

Always something when working on them....but we would not do it if we did not love them.

Thanks again....
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