|
Re: Proven strength of 8 3/4 diff
[Re: Pacnorthcuda]
#2569763
10/26/18 02:38 PM
10/26/18 02:38 PM
|
Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
|
I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
|
Anybody else just LIKE the convenience factor of a drop-out rear so that a majority of the set up work can be done on a bench? Absolutely.......I built the nodular myself with some help from guys on here and even w/out a pumpkin vise or diff tools, it went great and is quiet, tight and smooth.......... 
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: Thumperdart]
#2569780
10/26/18 03:28 PM
10/26/18 03:28 PM
|
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
|
That stack of slips proves nothing. Does to ME and that's the point especially YOU and a couple who swear I never race(d) enough to hurt the pumpkin well, there's 160+ runs there and many more I threw in the trash. I wont waste time arguing or pushing the point as I don't care what you guys think because most know nothing about me, my life or the bad ass THUMPER that's still driven and beat on weekly testing carbs for YOU guys...........   Dom...you said yourself that a lot of those slips were from a long time ago when the car wasn't nearly as fast as it is now. My point has always been that you make it sound like the car has years and years of 9 sec passes on that same gearset and it doesn't. Not to mention lots of guys will put more than 160 runs on their car in a single season...I have in the past just testing and tuning. How many of those slips are 9 sec runs? Beating on it on the street simply will not stress the rear enough to hurt it b/c the traction isn't there to do it, so that claim has no merit here. I'm not "hating" on you or your car. It runs very well for what it is, no doubt there. Making a few fast passes each year and then claiming it's been running 9s for X amount of years doesn't mean anything when most are thinking you race a lot more than you do. They'll usually take it for a lil while. A friend has a fast nitrous monte carlo that has a 7.5" 10 bolt in it. It's never been apart since he built it, but he also only races about twice a year. So when he says I've been <this fast> for X amount of years, it means squat to me, but people who ASSUME he races all the time think damn, that rear must be pretty strong.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: an8sec70cuda]
#2569786
10/26/18 03:39 PM
10/26/18 03:39 PM
|
Joined: Feb 2005
Posts: 20,174
PA.
pittsburghracer
"Little"John
|
"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
|
Nothing finds weak links faster than wide tires, fat cars, and traction compound.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: J_BODY]
#2569806
10/26/18 04:27 PM
10/26/18 04:27 PM
|
Joined: Jul 2004
Posts: 1,145
Arizona, USA
gsmopar
super stock
|
super stock
Joined: Jul 2004
Posts: 1,145
Arizona, USA
|
When I fell out of my keyboard racer closet 2 years ago I was thankful that none of my 165 passes off my trans brake had to transfer the power to the track via a 8.75.
^^^^That’s funny right there!^^^
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: sgcuda]
#2569810
10/26/18 04:43 PM
10/26/18 04:43 PM
|
Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
Ehrenberg, 50 years ago, rebuilt 8-3/4" hams in his parent's apartment, and had them stacked on steel shelving with (probably) every ratio ready-to-go for the original (pre-Green Brick) 1965 Valiant 4-door with 273/235 V8. Quick trip down the elevator to the parking garage, and a DIY in record time.
Horses for courses.
Did I get it right?
Boffin Emeritus
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: an8sec70cuda]
#2569815
10/26/18 04:53 PM
10/26/18 04:53 PM
|
Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
|
I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
|
That stack of slips proves nothing. Does to ME and that's the point especially YOU and a couple who swear I never race(d) enough to hurt the pumpkin well, there's 160+ runs there and many more I threw in the trash. I wont waste time arguing or pushing the point as I don't care what you guys think because most know nothing about me, my life or the bad ass THUMPER that's still driven and beat on weekly testing carbs for YOU guys........... Dom...you said yourself that a lot of those slips were from a long time ago when the car wasn't nearly as fast as it is now. My point has always been that you make it sound like the car has years and years of 9 sec passes on that same gearset and it doesn't. Not to mention lots of guys will put more than 160 runs on their car in a single season...I have in the past just testing and tuning. How many of those slips are 9 sec runs? Beating on it on the street simply will not stress the rear enough to hurt it b/c the traction isn't there to do it, so that claim has no merit here. I'm not "hating" on you or your car. It runs very well for what it is, no doubt there. Making a few fast passes each year and then claiming it's been running 9s for X amount of years doesn't mean anything when most are thinking you race a lot more than you do. They'll usually take it for a lil while. A friend has a fast nitrous monte carlo that has a 7.5" 10 bolt in it. It's never been apart since he built it, but he also only races about twice a year. So when he says I've been <this fast> for X amount of years, it means squat to me, but people who ASSUME he races all the time think damn, that rear must be pretty strong. Again, making a point about how some can kill em with a small block makin 500 hp and some can keep em alive even in the 9's or quicker although I'm not super heavy, the stock unit that Cab built MANY years ago lasted quite well...... 
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: polyspheric]
#2569820
10/26/18 05:03 PM
10/26/18 05:03 PM
|
Joined: Nov 2007
Posts: 21,822
Kirkland, Washington
Pacnorthcuda
Too Many Posts
|
Too Many Posts
Joined: Nov 2007
Posts: 21,822
Kirkland, Washington
|
Ehrenberg, 50 years ago, rebuilt 8-3/4" hams in his parent's apartment, and had them stacked on steel shelving with (probably) every ratio ready-to-go for the original (pre-Green Brick) 1965 Valiant 4-door with 273/235 V8. Quick trip down the elevator to the parking garage, and a DIY in record time.
Horses for courses.
Did I get it right? "Hams". That's a new one! How many names for these things? 3rd Member Center Section Pig Chunk Gearset ...and now Ham! What others am I missing?
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: sgcuda]
#2569920
10/26/18 08:19 PM
10/26/18 08:19 PM
|
Joined: Jan 2003
Posts: 20,177
Park Forest, IL
slantzilla
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 20,177
Park Forest, IL
|
I have never broken one with my slow junk, but I have helped change a couple at the track.
1 was in a high 11 second stocker, the other was in the car I just bought after a 10.50 nitrous pass at MATS. Both had teeth knocked out of the ring gear.
"Everybody funny, now you funny too."
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: sgcuda]
#2569980
10/26/18 10:54 PM
10/26/18 10:54 PM
|
Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
Anyone done cryo on the gears? $$? Result?
Boffin Emeritus
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: polyspheric]
#2570017
10/26/18 11:46 PM
10/26/18 11:46 PM
|
Joined: Feb 2006
Posts: 608
TN
1DGEMAN
mopar
|
mopar
Joined: Feb 2006
Posts: 608
TN
|
[quote=polyspheric]Anyone done cryo on the gears? $$? Result? [/quote
A good friend cryos and super rem finished all his 8.75 gears for his NHRA stocker. He saw the light and put a Dana in it this year. He has his 8.75 stuff for sale. I have a brand new MW steel cap from my dumb days.
Real Men shift for themselves
|
|
|
Re: Proven strength of 8 3/4 diff
[Re: TRENDZ]
#2570126
10/27/18 10:15 AM
10/27/18 10:15 AM
|
Joined: Jan 2003
Posts: 8,165
Plymouth, MI
Blusmbl
master
|
master
Joined: Jan 2003
Posts: 8,165
Plymouth, MI
|
You can bulk up the housing enough to stop any deflection that causes problems. But that just gets you to the next weak point. The pinion shears off at the yoke. I did that with a 2.76 741 case 8 3/4. B body, 4 speed, centerforce clutch. Maybe 400 hp 440 on a good day. Axles, u-joints, and then shearing the pinion clean off at the yoke. Gave up and put a Dana in it back when Dr. Diff was still selling cut down truck housings for a quite reasonable price and never broke another rearend.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
|
|
|
|
|
