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Re: FORD 8.8 REAR................
[Re: 1967dartgt]
#1702646
12/01/14 11:30 PM
12/01/14 11:30 PM
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Joined: Aug 2003
Posts: 4,693
On the parachute mount
n20mstr
master
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master
Joined: Aug 2003
Posts: 4,693
On the parachute mount
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My sons car has an 8.8 from an explorer. Why ? It was 150.00 from the junkyard, had disc brakes, and 4.10 gears with posi. All we did was cut the perches off and weld new ones on. We didn't even change the oil ! It's been repeated 11 teens and prob a couple hundred 11.50 passes (11.50 index car) what's funny is 150.00 rear ended, with 600.00 Afco double adjustables....lol
If the car gets more serious, i t will get a 9" but one like my car has, all aftermarket....lol
Last edited by n20mstr; 12/01/14 11:33 PM.
....BAD A$$ STREET CAR.....
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Re: FORD 8.8 REAR................
[Re: Monte_Smith]
#1702647
12/02/14 05:02 AM
12/02/14 05:02 AM
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Joined: Mar 2004
Posts: 781
MD
HEMI472
super stock
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super stock
Joined: Mar 2004
Posts: 781
MD
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Quote:
From Wikipedia......."The Dana 60 rear axle was first introduced in 1955 as a full floating axle in Ford F-250's and is still used today.
Manufactured in both full float and semi float variations. The semi float axles have GAWR up to 5,500 lbs and the full float axles were rated up to 6,500 lbs.
Full floating variants are common while Semi-floating axles exist, but are less common. Axle spline count varies, with 30 spline being the most common."
"The Dana/Spicer Model 60 is an automotive axle manufactured by Dana Corp. and used in OEM "heavy duty" pickup applications by Chevrolet, Dodge, Chrysler, Jeep and Ford. Various construction companies use this axle. There are front and rear versions of the Dana 60. It can be readily identified by its straight axle tubes, 10 bolt asymmetrical cover, and a "60" cast in to the housing
FACTORY installed in the following vehicles
Studebaker
1956–1964 E123⁄4t and E14 1t
Dodge
1966–1970 Coronet & R/T
1966–1972 Charger & R/T
1968–1972 Super Bee
1970–1971 Challenger
1963–1993 Dodge Ram 250 and 350
1994–2002 Dodge Ram 2500 (V8 Only)
2004–2006 Dodge Ram SRT-10
Plymouth
1966 Belvedere
1966 Satellite
1968–1972 Road Runner
1967–1971 GTX
1970–1971 'Cuda
Ford
1955–1985 Ford 3⁄4-ton Trucks
1955–1976 Ford 1 Ton Trucks
1980–2012 Ford E200/E250/E350 vans
Ford UK
1973–1982 Ford A0406 Truck (option)
Chevrolet
1964–1977 Chevrolet and GMC 3/4-ton pickups
1975–1987 Chevrolet and GMC 1-ton pickups and Suburbans
1979–2012 Chevrolet and GMC 1-ton vans
Jeep
1968–1973 Jeep J3800/J4800 Camper Truck (full float 30 spline)
1968–1970 Jeep J-2600/J2700/J3600/J3700 (semi float 30 & 35 spline)
1971–1973 Jeep J4000/4600/J4700 (semi float 35 spline)
1974–1988 Jeep J20 (full float 30 spline
g. Gross axle weight ratings are often lowered by the vehicle manufacturer for safety and tire reasons."
So there are a few facts............LOL!!!
interesting looks like ford used the dana in 3/4 ton trucks and bigger up to 4 tons. so why did they do that if the 9 nich is so great and they used them in 1/2 ton trucks and broncos?
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Re: FORD 8.8 REAR................
[Re: MR_P_BODY]
#1702650
12/02/14 01:32 PM
12/02/14 01:32 PM
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Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,684
W. Kentucky
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Quote:
interesting looks like ford used the dana in 3/4 ton trucks and bigger up to 4 tons. so why did they do that if the 9 nich is so great and they used them in 1/2 ton trucks and broncos?
Because the axle tubes would bend.. just like the 8 3/4
The two 9" that I broke both broke around the rear support bearing. Only bent one housing and it started collapsing where the spring perches were welded on. I don't recall the axles being any trouble to get out though. These were in a 79 four wheel drive with a 400, four speed and 32-10.5 tires.
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Re: FORD 8.8 REAR................
[Re: MR_P_BODY]
#1702653
12/02/14 03:31 PM
12/02/14 03:31 PM
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Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
BBR
master
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master
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
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8.8's are decent stuff IMO and they would be at the top of my list if I needed to convert a 7.5" diff'd A-body to a beefier rear.
My Mustang has stock Ford 3.55 gears, stock Traction-Lok (set up with alternating clutches), welded tubes, c-clip eliminators, and Motive 28 spline axles. Car weighs 3450 at the line and runs 10.40's @ 130. High 1.4's/low 1.5's in the 60.
The 28's have held up great thus far, knock on wood. lol I do have a set of 33's I will install with a spool at some point because I don't expect those 28's to live forever.
ymmv
Drag Week 2011 - 77th place - DD
Drag Week 2012 - 2nd place SRBB N/A
Drag Week 2014 - Kapooya
RMRW 2018
RMRW 2020
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Re: FORD 8.8 REAR................
[Re: HEMI472]
#1702654
12/02/14 03:32 PM
12/02/14 03:32 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:
well you would have thought all the ford engineers they would have came up with a way to fix there housing instead of buying complete rears from dana
Where is the logic in that?........Why didn't Chrysler design another rear instead of buying DANAs?.......For the same reason Ford didn't. Why engineer and tool up to make, what you can easily BUY. Why would ANY auto maker design a heavy duty "truck specific" rear, when you can already buy one of the best made, the DANA. The 9" came into play around the mid 50s, but they were designing a pass car and light truck rear, not a heavy duty truck rear, because they could get that from DANA. Same as Chevy, International, Studebaker, Chrysler and others.
Chrysler DID update the 8.75 from the small pinion rear that it was, to the larger unit for its hi-po cars, but obviously they didn't feel it stout enough for big block and HEMI cars, so they sourced DANA to build a pass car model. Ford on the other hand, felt their 9" WAS strong enough for their hi-po cars with a few upgrades, so they came out with the 31 spline, locker, nodular case, with better pinion support model, which WAS an extremely stout factory rear.
All 8.75s are not created the same and neither are 9" rears. While run of the mill 9s were weak, the hi-po model that came under super cars and some trucks and vans, was NOT. Same with 8.75s. The small pinion A-body type 8.75 is weak as water, but the larger pinion models are MUCH stronger, but still not nearly as strong as the BEST 9" rear. You have to compare apples to apples.
So, is the 9" as good and heavy as a DANA for a heavy duty truck app..........NO, because it was not designed to be that.
Monte
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Re: FORD 8.8 REAR................
[Re: Monte_Smith]
#1702657
12/02/14 05:20 PM
12/02/14 05:20 PM
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Joined: Mar 2004
Posts: 781
MD
HEMI472
super stock
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super stock
Joined: Mar 2004
Posts: 781
MD
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Chrysler DID update the 8.75 from the small pinion rear that it was, to the larger unit for its hi-po cars, but obviously they didn't feel it stout enough for big block and HEMI cars, so they sourced DANA to build a pass car model. Ford on the other hand, felt their 9" WAS strong enough for their hi-po cars with a few upgrades, so they came out with the 31 spline, locker, nodular case, with better pinion support model, which WAS an extremely stout factory rear.
All 8.75s are not created the same and neither are 9" rears. While run of the mill 9s were weak, the hi-po model that came under super cars and some trucks and vans, was NOT. Same with 8.75s. The small pinion A-body type 8.75 is weak as water, but the larger pinion models are MUCH stronger, but still not nearly as strong as the BEST 9" rear. You have to compare apples to apples.
So, is the 9" as good and heavy as a DANA for a heavy duty truck app..........NO, because it was not designed to be that.
so they tooled up to make everything else better? fixed everything but the housing
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Re: FORD 8.8 REAR................
[Re: HEMI472]
#1702658
12/02/14 05:46 PM
12/02/14 05:46 PM
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Joined: Jan 2005
Posts: 12,422
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,422
Kalispell Mt.
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I was gonna stay out of this but got to throw in that the "small pinion" 8.75 is NOT weak like the ford 9 inch that came behind a lot of weak junk ford engines witch most were. Never hear of guys breaking the pinion just the caps mostly but all 3 main mopar diffs are very strong un-like the ford. The good factory ford 9 inch is rare. A 318 2bbl b body came with a good 8.75 unlike a 302 2bbl ford. And mopar did put more 8.75 behind hemis then dana, mostly just manual cars.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: FORD 8.8 REAR................
[Re: HEMI472]
#1702659
12/03/14 12:42 AM
12/03/14 12:42 AM
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Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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Quote:
Chrysler DID update the 8.75 from the small pinion rear that it was, to the larger unit for its hi-po cars, but obviously they didn't feel it stout enough for big block and HEMI cars, so they sourced DANA to build a pass car model. Ford on the other hand, felt their 9" WAS strong enough for their hi-po cars with a few upgrades, so they came out with the 31 spline, locker, nodular case, with better pinion support model, which WAS an extremely stout factory rear.
All 8.75s are not created the same and neither are 9" rears. While run of the mill 9s were weak, the hi-po model that came under super cars and some trucks and vans, was NOT. Same with 8.75s. The small pinion A-body type 8.75 is weak as water, but the larger pinion models are MUCH stronger, but still not nearly as strong as the BEST 9" rear. You have to compare apples to apples.
So, is the 9" as good and heavy as a DANA for a heavy duty truck app..........NO, because it was not designed to be that.
so they tooled up to make everything else better? fixed everything but the housing
But who wants heavy for a race car? Just doesn't make sense.
Brett Miller W9 cnc'd heads
STR Chassis fabraction
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Re: FORD 8.8 REAR................
[Re: STEFF]
#1702660
12/03/14 12:55 AM
12/03/14 12:55 AM
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Joined: Jan 2003
Posts: 10,015
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,015
Frostbitefalls MN (Rocky&Bullw...
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Quote:
Fast Forward to 2014, Chrysler doesn't design or build Axles for any of their cars or trucks anymore. They buy them all from suppliers......Americam Axle, ZF, GKN, Dana etc....
And the reason is probably how many units they need, versus cost to tool up for a new design.
For a limited number needed, like the 60s 6pak and Hemi cars, I'm sure it must have been cheaper to contract Dana for the axles.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: FORD 8.8 REAR................
[Re: 1967dartgt]
#1702661
12/03/14 01:00 AM
12/03/14 01:00 AM
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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:
Chrysler DID update the 8.75 from the small pinion rear that it was, to the larger unit for its hi-po cars, but obviously they didn't feel it stout enough for big block and HEMI cars, so they sourced DANA to build a pass car model. Ford on the other hand, felt their 9" WAS strong enough for their hi-po cars with a few upgrades, so they came out with the 31 spline, locker, nodular case, with better pinion support model, which WAS an extremely stout factory rear.
All 8.75s are not created the same and neither are 9" rears. While run of the mill 9s were weak, the hi-po model that came under super cars and some trucks and vans, was NOT. Same with 8.75s. The small pinion A-body type 8.75 is weak as water, but the larger pinion models are MUCH stronger, but still not nearly as strong as the BEST 9" rear. You have to compare apples to apples.
So, is the 9" as good and heavy as a DANA for a heavy duty truck app..........NO, because it was not designed to be that.
so they tooled up to make everything else better? fixed everything but the housing
But who wants heavy for a race car? Just doesn't make sense.
None of these arguments make sense........LOL!!!...........they just want to argue because some of us like a Ford rear better than most Mopar rears and that makes us less of a Mopar guy I guess.
Like the guy harping on the fact that the 9" housing wasn't updated.........why?, what would be the point. The webbed housing was plenty strong for what it was designed for and the smaller housing(that the street rod guys like) was plenty good enough for the cars it was installed under.
As far as the nodular iron Ford center being hard to find........so what? E-body DANAs are hard to find to, so whats the point? At one time the Nodular centers were easy to find, as not only did they come under Cobra-Jet cars, they were also under trucks and vans. At one time I had over a dozen that I had found in wrecking yards, that I paid about 25 bucks a piece for the whole chunk. Wish I had them now............LOL!!!
Monte
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Re: FORD 8.8 REAR................
[Re: HEMI472]
#1702663
12/03/14 04:46 AM
12/03/14 04:46 AM
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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:
the point is that they up graded everything else because it was weak and they knew it or they would not have up graded the center section and axels just like the 8 3/4 but they must have got to the point where they knew the dana was better so they just went with the dana. they both had money in the upgrade so why not just fix the housing? if it was better?
What part of "it was not designed to be a HD truck rear" are you not understanding. The housing was FINE in the applications the rear was designed for.........
Monte
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