1961 F100 Crown Vic Swap aka Franken Ford
#76
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#81
#82
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#83
I have a 2009 crown Victoria rear end that I put in my 1961 F100. I am trying to figure out the gear ratio and from what I've found is that's its a set of 2.73 gears. I am having a hard time finding that new set of that gear ratio. I've found tons of 3 73 ratios. am I reading this tag correctly. and if I was to use the 3.73 gears would it be a noticeable change in top end speed. thanks
#84
Given the size tire that you are running, with an automatic OD transmission, at 55mph you'll see around a 500 RPM increase. So, if you're running around 1200-1300 RPM's with you're 2.73 gear, you'll be in the 1700-1800 RPM neighborhood with a 3.73. You would also feel a big seat of the pants gain in acceleration with that gear change. the chassis that I purchased is a 2009 P71 and it has a factory 3.55 locking rear differential in it.
What is wrong with your current rear end?
What is wrong with your current rear end?
#85
#86
#87
Just throwing this out there - My '64 short-wide (Fleetside) weighs 4020 on the scrapyard scale (Two different yards, same weight). Mine's equipped with an Aerostar front end, a 351W, small block C-6 and the original dana rear axle with 8 leaf springs, overload coils on the rear shocks and a power bench seat from a buick.
Aerostars are advertised at around 3500 lbs curb weight.
My 01 Crown Vic is advertised at 3908 lbs curb weight.
A '10 Crown Vic is advertised at 4134 lbs curb weight.
I dunno why, I just find specs interesting. Maybe someone can use this data in deciding on how to proceed with their project.
Aerostars are advertised at around 3500 lbs curb weight.
My 01 Crown Vic is advertised at 3908 lbs curb weight.
A '10 Crown Vic is advertised at 4134 lbs curb weight.
I dunno why, I just find specs interesting. Maybe someone can use this data in deciding on how to proceed with their project.
#89
Before you put that in, pull the clutches out and see that you have a steel-fiber-steel-fiber, etc clutch arrangement. Back in the 90's ford would put two steels or fibers back-to-back, can't remember which, to low the clutch efficiency. The trick was to buy a clutch rebuild kit, which are cheap, and re-arrange the steels and fibers so that you have the strongest possible limited slip results. I think you can buy a stronger tension s-spring(aftermarket) which will also help.