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Looks like I blew a tranny…. Was hoping I’d never have to say that.

Started by jimhyc, May 26, 2026, 03:57:39 PM

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jimhyc

Took my 69 GT500 out for a ride this morning and hit the passing gear and it revved but didn't build any speed. Shifts were erratic on the way home and slipped a bit backing in the shop. Figured this would happen at some point due to the age. Did a fluid and filter last summer and it still had the yellow plug in the pan so it was never apart. There wasn't any glitter or much clutch material in the fluid but I keep forgetting these cars are now going on 60 years old and the seals get hard. Unfortunately I know what I'll be doing the next few weeks.
This follows a few days of diagnosing a different issue that drove me crazy. It idled fine and was good at full acceleration but really rough at a steady 1,500/2,500 rpm. The light distributor spring broke the loop off and the advance weight was free to move around.
These cars are supposed to be fun - right?
The water pump in my one Pierce needs to be repacked, My Mach1 is in the middle of replacing the original hoses. Maybe I'm tempted fate by taking my other Pierce out for 40 miles to a cruise night. I mean what else could go wrong....
1969 GT500
2005 Saleen S281
1973 MACH1 Q code
1967 Mustang
1965 Galaxie 500
1969 Thunderbird
1988 Turbo Coupe
1928 Pierce Arrow
1930 Pierce Arrow
Prior cars
1967 GT500
1970 GT500
1968 KR
1970 BOSS 429
Daytona Coupe, 427 Cobra - kits
1971 BOSS 351

98SVT - was 06GT

Quote from: jimhyc on May 26, 2026, 03:57:39 PMDid a fluid and filter last summer and it still had the yellow plug in the pan so it was never apart.
The water pump in my one Pierce needs to be repacked, My Mach1 is in the middle of replacing the original hoses. Maybe I'm tempted fate by taking my other Pierce out for 40 miles to a cruise night. I mean what else could go wrong....
Now at 76 I'm leaning towards my dad's advise - it it ain't broke don't fix it.
Took our 29 Model A for a spin yesterday. I had just fixed a broken crank pulley in it - It has a modern leakless water pump no repacking and adjusting. I guess if they'd made 5 million Pierce Arrows there would be one for them.....
Previous owner 6S843 - GT350H & 68 GT500 Convert #135.
Mine: GT1 Mustang, 1998 SVT 32V, 1929 Model A Coupe, Wife's: 2004 Tbird
Member since 1975 - priceless

Brian350


TA Coupe

Quote from: Brian350 on May 26, 2026, 04:37:19 PMBlowing your tranny doesn't mean what it used to... :-)

He needs to keep his mouth shut 🤣

    Roy
If it starts it's streetable.
Overkill is just enough.