Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: Monte_Smith]
#1752367
02/14/15 02:46 AM
02/14/15 02:46 AM
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Joined: Dec 2004
Posts: 10,607 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,607
Rittman Ohio
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I know my Dana housing is slightly bent and I don't have big horsepower but it does hook pretty well on a good pad Monte do you know why radials don't hook very well with a stick car but they seem to do o.k. with a trans brake Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: Monte_Smith]
#1752368
02/14/15 03:05 AM
02/14/15 03:05 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
A radial is hooked, or it's not. There is no in between regardless of the track.
As far as what street/strip car will bend a housing.........you would be surprised. MOST housings under even moderately powered cars are bent now.
Yeah, it wouldn't shock me to find out my braced 8.75" isn't straight any more, even with my slow ride.
Even though the discussion veered a bit off course from my original questions, this has still been an informative thread.
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: MattW]
#1752371
02/14/15 12:08 PM
02/14/15 12:08 PM
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Joined: Oct 2007
Posts: 3,978 Hilltown Pa
1967dartgt
master
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master
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Posts: 3,978
Hilltown Pa
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Quote:
Last I checked there are no "free" a body danas around. But by all means if any Mopar purist wants to give me a a-body Dana 60 for free I will gladly take it. Lol I would need to figure out how to brace it or I would just bend it. I keep bending the axle in the car.
At my power level I would need all aftermarket parts in a Dana so why not go with a lighter rear and make my car faster? Isn't this what we are looking for? To maximize the performance of our cars. I run 10 inch rims with a 275/60 radial and leaf springs so my axle is 46 inches wide. I have torn off leaf spring mounts also and have them boxed in now.
My car is also street legal and is driven on the street, exactly as it is driven on the track.
This is the info I'm looking for.
Can I ask what is in your rear to make things work!
I mean housing, what kind, where you got it and centre section. Thx Matt
I still have a 8 3/4 rear in my car. I have put it on the jig twice now to straighten it out, I am sure it needs to be done again. I have mark Williams caps on a factory 489 case. I run a light weight moser 35 spline spool and moser gun drilled and star flanged axles. I have a billet mark Williams 1350 yoke on it. It currently has us gears in it. I have broken gears, sheared all the ring gear bolts off, bent the axle, but all of that has been over the 15 yrs I have raced my car. I need to put a nine inch in my car, but I keep spending money else where, like fixing the damage from the wheelie. Someday it will have a moser chromoly nine housing with aluminum center section in it, and I won't have to say a prayer every time I hit the burnout box asking for just one more pass!
Brett Miller W9 cnc'd heads STR Chassis fabraction
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: Monte_Smith]
#1752372
02/14/15 01:06 PM
02/14/15 01:06 PM
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Joined: Jan 2003
Posts: 4,448 Phoenix, AZ
MoparBilly
master
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master
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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Quote:
Bad move in my opinion, but maybe it will work out for him.............Pro gears are fine on the street by the way.........LOL!!! That's what every other big tire car on Drag Week uses. Haven't heard of anyone eating a gear yet Monte
Actually questioned Pro gear users on Drag Week, and were told they eat them up on a regular basis, like one set every 2500 miles! If you know of guys doing better I'd love to know how they are setting them up, and what lube they are running.
Below pic is of Larry swapping gears on Drag Week 2012 in Memphis.
BTW, I would've chosen a nine for this build, but his thinking was that he was determined to use a street gear, and the 60 has the largest ring gear, so it will take more abuse, we will see how it works out.
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: MoparBilly]
#1752373
02/14/15 01:11 PM
02/14/15 01:11 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:
Quote:
Bad move in my opinion, but maybe it will work out for him.............Pro gears are fine on the street by the way.........LOL!!! That's what every other big tire car on Drag Week uses. Haven't heard of anyone eating a gear yet Monte
Actually questioned Pro gear users on Drag Week, and were told they eat them up on a regular basis, like one set every 2500 miles! If you know of guys doing better I'd love to know how they are setting them up, and what lube they are running.
Below pic is of Larry swapping gears on Drag Week 2012 in Memphis.
I remember Larry changing out that rear.. if I recall that was the only time he did change gears(when I was just talking with him later during clean up)
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: Monte_Smith]
#1752375
02/14/15 04:12 PM
02/14/15 04:12 PM
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Joined: Feb 2007
Posts: 6,295 U.S.
moparniac
master
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master
Joined: Feb 2007
Posts: 6,295
U.S.
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I went with the Dana 60 just cause of the cool diff covers.
Mopar Performance
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: MoparBilly]
#1752376
02/14/15 06:17 PM
02/14/15 06:17 PM
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Joined: Nov 2004
Posts: 6,890 North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Quote:
Quote:
Bad move in my opinion, but maybe it will work out for him.............Pro gears are fine on the street by the way.........LOL!!! That's what every other big tire car on Drag Week uses. Haven't heard of anyone eating a gear yet Monte
Actually questioned Pro gear users on Drag Week, and were told they eat them up on a regular basis, like one set every 2500 miles! If you know of guys doing better I'd love to know how they are setting them up, and what lube they are running.
Below pic is of Larry swapping gears on Drag Week 2012 in Memphis.
BTW, I would've chosen a nine for this build, but his thinking was that he was determined to use a street gear, and the 60 has the largest ring gear, so it will take more abuse, we will see how it works out.
I know the guys in the Vette have never hurt a gear in it or the 55. Larry told me that gear he broke had been in the car for years. Lutz says he doesn't hurt gears........so who knows.
Me personally, I would sacrifice the occasional gear set for the use of the Ford rear. I just think the Dana housing, although this one will be short, is a very poor choice for THAT type car. You just CAN'T brace the housing and though short, that car WILL bend it. I don't care what you do to it out past the brackets, your gonna bend it
Monte
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: Monte_Smith]
#1752377
02/14/15 07:47 PM
02/14/15 07:47 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:
Quote:
Quote:
Bad move in my opinion, but maybe it will work out for him.............Pro gears are fine on the street by the way.........LOL!!! That's what every other big tire car on Drag Week uses. Haven't heard of anyone eating a gear yet Monte
Actually questioned Pro gear users on Drag Week, and were told they eat them up on a regular basis, like one set every 2500 miles! If you know of guys doing better I'd love to know how they are setting them up, and what lube they are running.
Below pic is of Larry swapping gears on Drag Week 2012 in Memphis.
BTW, I would've chosen a nine for this build, but his thinking was that he was determined to use a street gear, and the 60 has the largest ring gear, so it will take more abuse, we will see how it works out.
I know the guys in the Vette have never hurt a gear in it or the 55. Larry told me that gear he broke had been in the car for years. Lutz says he doesn't hurt gears........so who knows.
Me personally, I would sacrifice the occasional gear set for the use of the Ford rear. I just think the Dana housing, although this one will be short, is a very poor choice for THAT type car. You just CAN'T brace the housing and though short, that car WILL bend it. I don't care what you do to it out past the brackets, your gonna bend it
Monte
Thats why the brace I make goes right to the bearing.. both on my 9" and the 8 3/4
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: ccarson]
#1752379
02/14/15 09:04 PM
02/14/15 09:04 PM
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Joined: Feb 2011
Posts: 4,302 Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I didn't realize how expensive 9" er's have gotten. Sheez..
Mopar to the bone!!!
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: AndyF]
#1752381
02/14/15 11:59 PM
02/14/15 11:59 PM
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Joined: Apr 2013
Posts: 345 Nebraska
451Cuda
enthusiast
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enthusiast
Joined: Apr 2013
Posts: 345
Nebraska
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Quote:
Dana 60 all the way for your car Brad. What gear are you going to run? Only question if it was me would be Trac Loc or TrueTrac.
Why not just run a spool? Lighter and 100% lockup all the time.
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: 1967dartgt]
#1752382
02/15/15 12:14 PM
02/15/15 12:14 PM
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Joined: Jun 2005
Posts: 2,776 Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
Last I checked there are no "free" a body danas around. But by all means if any Mopar purist wants to give me a a-body Dana 60 for free I will gladly take it. Lol I would need to figure out how to brace it or I would just bend it. I keep bending the axle in the car.
At my power level I would need all aftermarket parts in a Dana so why not go with a lighter rear and make my car faster? Isn't this what we are looking for? To maximize the performance of our cars. I run 10 inch rims with a 275/60 radial and leaf springs so my axle is 46 inches wide. I have torn off leaf spring mounts also and have them boxed in now.
My car is also street legal and is driven on the street, exactly as it is driven on the track.
This is the info I'm looking for.
Can I ask what is in your rear to make things work!
I mean housing, what kind, where you got it and centre section. Thx Matt
I still have a 8 3/4 rear in my car. I have put it on the jig twice now to straighten it out, I am sure it needs to be done again. I have mark Williams caps on a factory 489 case. I run a light weight moser 35 spline spool and moser gun drilled and star flanged axles. I have a billet mark Williams 1350 yoke on it. It currently has us gears in it. I have broken gears, sheared all the ring gear bolts off, bent the axle, but all of that has been over the 15 yrs I have raced my car. I need to put a nine inch in my car, but I keep spending money else where, like fixing the damage from the wheelie. Someday it will have a moser chromoly nine housing with aluminum center section in it, and I won't have to say a prayer every time I hit the burnout box asking for just one more pass!
Moser site is only showing a 9 rear with chromoly tubes with the floating ends. Is this the one? If so is seems a little over kill or I'm I wrong? Not trying to Matt
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: 1967dartgt]
#1752383
02/15/15 12:19 PM
02/15/15 12:19 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
I still have a 8 3/4 rear in my car. I have put it on the jig twice now to straighten it out, I am sure it needs to be done again. I have mark Williams caps on a factory 489 case. I run a light weight moser 35 spline spool and moser gun drilled and star flanged axles. I have a billet mark Williams 1350 yoke on it. It currently has us gears in it. I have broken gears, sheared all the ring gear bolts off, bent the axle...
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: AndyF]
#1752384
02/15/15 12:34 PM
02/15/15 12:34 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Dana 60 all the way for your car Brad. What gear are you going to run? Only question if it was me would be Trac Loc or TrueTrac.
Actually considering a Detroit Locker more seriously than a TrueTrac. I'm finding mixed reviews of using a TrueTrac in drag applications, but I really don't know much else about them. If someone can provide more info on how well a TrueTrac does on the strip, I'm interested.
The specifics for my junk (not covered previously in this thread) are... - 3750+ # E-body w/ driver - 727 w/ 4500-flash 9" converter - Stock-stroke modified 440 - 275/60R15s DOT Drag Radials
The 8.75" I have now has... - OEM 742 case - 4.10s (which is the ratio I'd stick with) - Power-Lok (clutch-type) diff carrier - MW billet caps - Cheap back-brace on housing (too narrow to probably do much good)
Street car w/ best pass of 10.52 at 126+ (6.6_ at 102 in 1/8th) w/ a 1.45 60-ft. I know it pulls the wheels 4+" according to friends who watched the car launch, but nobody ever bothered to provide me photographic evidence.
The new engine should make another 40+ HP, so I'm expecting to be in the lower 10s w/ the rest of the combination (converter, gearing, etc.) staying the same.
Strictly from a budget perspective, the Dana 60 appears to be the more affordable.
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Re: Street/strip diff upgrade: D60 vs 9" pros & cons
[Re: BradH]
#1752385
02/15/15 12:37 PM
02/15/15 12:37 PM
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Joined: Jun 2005
Posts: 2,776 Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
Dana 60 all the way for your car Brad. What gear are you going to run? Only question if it was me would be Trac Loc or TrueTrac.
Actually considering at a Detroit Locker more seriously than a TrueTrac. I'm finding mixed reviews of using a TrueTrac in drag applications, but I really don't know much else about them.
The specifics for my junk (not covered previously in this thread) are... - 3750+ # E-body w/ driver - 727 w/ 4500-flash 9" converter - Stock-stroke modified 440 - 275/60R15s DOT Drag Radials
The 8.75" I have now has... - OEM 742 case - 4.10s (which is the ratio I'd stick with) - Power-Lok (clutch-type) diff carrier - MW billet caps - Cheap back-brace on housing (too narrow to probably do much good)
Street car w/ best pass of 10.52 at 126+ (6.6_ at 102 in 1/8th) w/ a 1.45 60-ft. I know it pulls the wheels 4+" according to friends who watched the car launch, but nobody ever bothered to provide me photographic evidence.
The new engine should make another 40+ HP, so I'm expecting to be in the lower 10s w/ the rest of the combination (converter, gearing, etc.) staying the same.
Strictly from a budget perspective, the Dana 60 appears to be the more affordable.
Don't know if this was mentioned before but the Dana S60 will allow you to change gears without spreading the case.
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