727 vs PG

[pittsburghracer]

Exactly right about the Ford 9 inch. Almost nothing is stock. Same with a reliable powerglide. My case is aftermarket, the gearset, drums, clutches, bearings, seals, pump, and everything else except the tailshaft, and two other parts that cost about six dollars. Even the bellhousing is Mopar pattern.

 

[Cope]

I can attest to the 9", not a single part of my 9" is made by ford, not one. Not even the housing....

If a "ford 9" in name only....

 

[SGBARRACUDA]

One advantage of a glide over a 727 is the higher 1st gear ratio. When I ran my 2615 lb SG 67 Barracuda, it would launch so hard I kept bending wheelie bars. I ran 16x33x15 slicks with a 4.88 gear. I made the switch to a glide with a 4200 convertor and it would launch nice and easy with the front tire 6-8 inches off the ground. The damn thing would drive itself. Went form running 5.85-5.90 in the eighth to 5.74- 5.80.

 

[Garrett Ellison]

I imagine consistency improved dramatically as well, nothing like the adrenaline rush of a a car you have to fight tooth and nail coming off the line!

 

[Duane]

Absolutely! Powerglides require much lower gearing to work properly, which is why low gear sets of 1.58 to 1.72 are popular in drag racing 'glides. Less rpm drop between shifts for something that is meant to make peak power at insanely high rpm levels. Of note is the new drag race two speed transmissions based on a turbo 400, as they actually usually utilize a second gear set with ratios of 1.53 to one 1.23 for a first gear set. Top dragster, super boosted, or nitrous pro modified type setup, far outside the realm of "normal" for most of us... Lenco territory!

Another new option now is the new cope trans brake valve body that functions in 2nd gear on a Torqueflite. 1.58 start ratio in a 904.