Nodular 8.75 case , how much stronger
#2567293
10/21/18 01:58 PM
10/21/18 01:58 PM
|
Joined: Jan 2003
Posts: 11,716 Portage,michigan
B3422W5
OP
I Live Here
|
OP
I Live Here
Joined: Jan 2003
Posts: 11,716
Portage,michigan
|
Than a production 489 housing Anybody using a nodular 8.75 rear with a brake?
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: B3422W5]
#2567355
10/21/18 04:05 PM
10/21/18 04:05 PM
|
Joined: Jan 2003
Posts: 11,716 Portage,michigan
B3422W5
OP
I Live Here
|
OP
I Live Here
Joined: Jan 2003
Posts: 11,716
Portage,michigan
|
Years ago i tore up a 489 case the first weekend out with a combo that made decent steam( at that time 10.40 in a 3350 pound car) after running high 10’s for several years with the previous combo and no issues. Should mention this is all footbrake. Just wondering if its worth spending 1000 or so on a new 3rd member with spool and the nodular to footbrake race something thats going to be making more steam than currently next season A Dana would be a bunch more than that, and welding brackets and this and that
Last edited by B3422W5; 10/21/18 04:05 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: Roughbird72]
#2567391
10/21/18 05:23 PM
10/21/18 05:23 PM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
I ran a stock 742 forever as you know Cab and these new nodular units are better than the all mighty 742.......... Do they have more pinion support than stock cases? The biggest issue was most guys didnt put in a solid spacer in the 489 case.. the 742 has one
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: B3422W5]
#2567409
10/21/18 06:23 PM
10/21/18 06:23 PM
|
Joined: Aug 2011
Posts: 2,864 Pattison Texas
CSK
master
|
master
Joined: Aug 2011
Posts: 2,864
Pattison Texas
|
Ok I will say it, Do not waste more money on an 8 3/4, PERIOD
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: B3422W5]
#2567411
10/21/18 06:26 PM
10/21/18 06:26 PM
|
Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
|
master
Joined: Sep 2014
Posts: 4,457
Washington
|
Do the Dana and don't look back. A bit more money now but cheaper in the long run.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: B3422W5]
#2567427
10/21/18 07:03 PM
10/21/18 07:03 PM
|
Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
|
If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
|
It seems to me, after decades of these discussions, the venerable 8.75 might be the best engineering design ever, in that when loaded beyond its design strength, EVERYTHING fails at nearly once, meaning from an engineering stand point, NOTHING is over designed/overweight/over cost.
All that means is, if you like playing wacko o mole, you are in the right place, keep reading, keep adding band aids..
It you are at or near the limits of a 8.75, that last poster is your guy.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: CSK]
#2567429
10/21/18 07:06 PM
10/21/18 07:06 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
|
Ok I will say it, Do not waste more money on an 8 3/4, PERIOD Been driving racing my 9-second Dart forever and JUST replaced the "stock" pumpkin 2+ years ago that had stock caps bolts etc. Too many wives tales but then again, some people are puttin them in the wrong application so you need to know where the cut off point is...........
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: Nodular 8.75 case , how much stronger
[Re: B3422W5]
#2567434
10/21/18 07:17 PM
10/21/18 07:17 PM
|
Joined: Oct 2007
Posts: 4,207 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,207
New York
|
A Dana would be a bunch more than that
Not that much if you sell the 8-3/4 while it's still good.
Boffin Emeritus
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: merpar]
#2567495
10/21/18 10:12 PM
10/21/18 10:12 PM
|
Joined: Aug 2003
Posts: 8,779 Mt.Gilead, Ohio
OhioMopar
master
|
master
Joined: Aug 2003
Posts: 8,779
Mt.Gilead, Ohio
|
The weak point in the 8 3/4 is the bearing caps. I thought it was the lack of a rear pinion support...
1969 Dart GTS 340 1969 Super Bee X9 N-96 1969 Coronet R/T X9 N-96 2015 Dodge Dart GT 2019 Ram 2500 Big Horn. Looking for the original block for my Bee. The last 4 are 7449
|
|
|
Re: Nodular 8.75 case , how much stronger
[Re: merpar]
#2567496
10/21/18 10:18 PM
10/21/18 10:18 PM
|
Joined: Aug 2003
Posts: 43,211 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,211
Bend,OR USA
|
The weak point in the 8 3/4 is the bearing caps. Usually the left cap cracks and breaks into two or more pieces and sometimes it will break the passenger side cap at the same time OP, pick your poison, pay more now for a Dana 60 or pay for one later I had three different 742 8 3/4 pumpkins as well as several 741 and 489 cases with solid spacer instead of the crush sleeve, I cracked the outer tips on the ring gear teeth on all of them and ended up bending the heck out of unbraced housing due launching the car hard for a lot of passes(200+) before it bent badly enough to break the welds off of the ladder bar mounts Luckily it broke them on the starting line, not going into 2nd or 3rd gear It broke a bunch of other drive line parts before bending the housing Looking back now I should have put a Dana 60 on it to start with, but I didn't
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
|
|