8 3/4 guru need your help

69valiantracer said
When you loose an 8 3/4, you will normally roll the sprauge in a 727 also,if not at the time, but eventually.So lets keep things staright about breakage.It's not just throw another pumpkin in.

Ford guys use 8.8's because they are cheaper, and work well in lower HP cars,in stock configuation.

All The Top dragesters , and just about evey Super class car, runs a 9". true, it may be a fab housing in some but it is still a 9"

I don't know what to tell you,all I can say about your HP theroy is, I didn't loose any HP, E.T. or MPH when I went 9". All I lost was worry about loosing my 8 3/4.
If the 8 3/4 was all that (like it once was),gave you more HP then a 9", everybody would be building them. While on the other hand,performence parts are getting less and less for them.I.E. very few pro gears, less gear ratio options.Maybe 1 choice of nodular case.No fab housings on and on.
Back to my origianl point....You can keep dumping cash and effort, into a 8 3/4, if you really like them that much. But for the money and effort (less money and effort), you can do a 9" up and be done with it.
But atleast we agree that the 742 is better, then the 489 case.

If you lose a sprag in a 727 that was because when you had it built it was to save money and you didn't have it built correctly using all the better pieces and ways to build it.

I have a 8.8's in the 1.1 60's at 2900 lbs and 3470 lbs area from 7.70 thru 11.0's? so saying the 8.8 can't handle it are just more rumors and misconceptions, and the 8.8 is just a new 12 blt.

Some of those look like 9" from the back and are using the 12blt drop out so don't be so sure what you're seeing is a 9".
I have some super cars with the 12 bolt piece.
Most everyone jumps for the 9" because they had a problem and think the Dana is 90 lbs heavier when it is NOT, most just THINK they can set up a diff and really the problem is them.
Most all shops will push you to the 9" because it easier for them, and they don't need more special expensive tools for those specific diffs.

But a non pro gear 8.75 in 742 config in the AL case more than 500 pass @ 9.50 full weight B body, 5800 off the t-brake... not even a chip, as seen in the pic above they barely look used and if not for the 500 documented passes you'd think there was 5 runs on them.

As for the hp consumption of the 9" over the 8.75, Dana, 8,8 and 10/12 blt it is between depending which diff you're comparing it to in this line up can be and IS as much as 16hp, and if you run a super class, you want that hp over the 9" ALL YEAR.

Bad Sport said
The car weighs in at around 2800. My guess about 200 runs a season.

He is lighter than the cars we're running and the weight helps, but it still shows they aren't bad