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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: DemonDust]
#1081850
09/25/11 02:32 PM
09/25/11 02:32 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
My engine must be a POS... I never broke my 8 3/4 yet....
I had over 600 passes on a stock 489 till it spit the
caps off, thats when I changed over to the alum center
but again its a light car
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: DemonDust]
#1081852
09/25/11 02:48 PM
09/25/11 02:48 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
What do you gain with the alum center?
I'm running a 742 case with 5.13, billet caps, spool and Cass's race axles. I've recently back braced it since the tubes were starting to twist.
The alum center is based on the 742 but its just
beefier and stronger... it has threw bolts(on 3 of
them) to hold the caps which are big... when I bought
mine they were reasonable on price and I got 35% off,
now days they're pretty pricey
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: MR_P_BODY]
#1081853
09/25/11 02:51 PM
09/25/11 02:51 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
What do you gain with the alum center?
I'm running a 742 case with 5.13, billet caps, spool and Cass's race axles. I've recently back braced it since the tubes were starting to twist.
The alum center is based on the 742 but its just
beefier and stronger... it has threw bolts(on 3 of
them) to hold the caps which are big... when I bought
mine they were reasonable on price and I got 35% off,
now days they're pretty pricey
Yup, if I remember right. A lot of strength is gained with the through bolts, even though it's aluminum. 
Sorry to hear about rear, jcastle1, don't have any leads for ya for on dana 60 rear ends.
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: jcastle1]
#1081855
09/25/11 04:32 PM
09/25/11 04:32 PM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Quote:
Mike,
The pig was just freshened with new bearings & pinion seal last fall.
I re-installed the yolk and torqued it to 190 lbs.
I was told by the person who re-built my pig that he torqued it to 225 ft. lbs.
The yolk definately felt different(tighter)after I torqued to 190
I was gonna step it to 225lbs after I reached 190 but stopped because it felt tighter.
The next day after driving it to the track,it broke on the starting line after 1 easy pass to break in the new slicks.
Do you think I probably crushed the sleeve further,and changed the pre-load?
John
if it felt tighter then yes you over torqued it and that is why it broke ...
But I have to ask why ANYONE still uses a crush sleeve ??? It's an accident waiting to happen, solid spacers have been available for the 489 for close to 20 years ...
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: DemonDust]
#1081856
09/25/11 04:34 PM
09/25/11 04:34 PM
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Joined: Dec 2009
Posts: 20,630
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,630
in a cattle trailer down by th...
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Quote:
Whats the P/N?
http://www.summitracing.com/parts/DCC-4876445/?rtype=10
I've been using one for well over 10 years now and since I went to the pro gear I've not broken anything. Even my 30 spline Moser axles splines are still nice and straight.
Mancini is the cheapest I've found though.
http://chucker54.stores.yahoo.net/moal8ca742ca.html
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: DemonDust]
#1081857
09/25/11 04:34 PM
09/25/11 04:34 PM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Quote:
My engine must be a POS... I never broke my 8 3/4 yet....
Have you ran it other than on the ice ?
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: JohnRR]
#1081858
09/25/11 05:01 PM
09/25/11 05:01 PM
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Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust
master
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master
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
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Quote:
Quote:
My engine must be a POS... I never broke my 8 3/4 yet....
Have you ran it other than on the ice ?
Yeah I ran it on the asphalt, got a 1.36 60 ft... But the belleville unwound and the high clutches had a nuclear meltdown.... Currently under reconstruction 
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: fourgearsavoy]
#1081859
09/25/11 05:16 PM
09/25/11 05:16 PM
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Joined: May 2003
Posts: 2,117
Cleveland Ohio
10secGTX
top fuel
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top fuel
Joined: May 2003
Posts: 2,117
Cleveland Ohio
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Quote:
Yep split the sleeve,lost all the preload then mayhem was introduced 
They all fail eventually 
Gus 
Gus.... You Got a pretty way of sayn things....
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Re: Healthy 383+4-speed+slicks=junk 8 3/4
[Re: fourgearsavoy]
#1081862
09/25/11 10:13 PM
09/25/11 10:13 PM
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Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
David_in_St_Croi
top fuel
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top fuel
Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
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Call Cass Eslick aka Dr. Diff out in Montana. He can set you up with a Strange 60. We went the S60 route with a Detroit Tru-Trac. Has worked great. The 8-3/4 brakes bolted right up, which saved some coin.
Tried to find a Dana in a junkyard, but decided the time spent to find one, change gears, put in limited slip of some type, weld on axle ends was better spent doing what I do well, which is designing boats, and paying Cass for brand new parts that showed up in a nice crate.
Oh yeah, on our 8-3/4 the spider gears broke, the left axle shaft twisted off and the right one was twisted like you show. There were also signs of the ring gear hitting the housing. Same deal, stout 383, heavy car (70 RR) 4 speed, slicks. Now that we have a Performance Only 452 I am really good that we have the S60.
The problem was, no matter what axles I put in, the spider gears would be the same. I would have to back brace the housing (welding, distortion, straightening), buy new shafts etc so went right to overkill.
Bummer about the breakage regardless.
I will also mention might want to think about a different clutch too since we are all spending your money with our suggestions. I have been very pleased with our Tim Hyatt built Mcleod based Soft-Lock. Loosen it up for the track, tighten it up for the street.
Last edited by David_in_St_Croi; 09/25/11 10:30 PM.
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