Posted By: rt66jim
Does anyone make custom gears? - 09/03/09 08:47 PM
I have a friend building a 5.9 Cummins 73 Dart. He needs the rear gearing to be in the 2.5/2.7 range does anyone make custom gears for a Dana 60? Jim
Does anyone make custom gears?
Posted By: Cab_Burge
Re: Does anyone make custom gears? - 09/04/09 04:44 AM
Quote:Call Dana Corporation
I have a friend building a 5.9 Cummins 73 Dart. He needs the rear gearing to be in the 2.5/2.7 range does anyone make custom gears for a Dana 60? Jim
Ford had 3.30 ratio gears in there mid 1970 to probally early 1980s 3/4 ton V8 4 speed gas motors, check your local junk yards or your local Ford dealers heavy mechanics, maybe one of them pigeon holed a set 
BTW, what front suspension is your buddy going to use to hold that Dart up with 
Posted By: 79_W200
Re: Does anyone make custom gears? - 09/04/09 10:29 AM
Dodge and furd also used a 2.73 gear in the 3/4 1 ton truck in the late 80's and early 90's they were put in a dana 61 which had the inside of the housing machined farther over for the big pinion other wise the same as a dana 60 I will have to check i think i have a set of these gears p.m. me if your interested
Posted By: The Avg. Valiant
Re: Does anyone make custom gears? - 09/04/09 04:00 PM
I dont think a dana 61 gear cluster works in a 60 housing does it? I know alot of guys that thought they were getting a great deal on a 60 on to find out it was a 61, and there cant be to many 61's out there.
Posted By: 79_W200
Re: Does anyone make custom gears? - 09/04/09 07:20 PM
all the parts are the same except the side of the housing is machined out 1/4 or so to allow easy fit of the large pinon other wise carier, gear, brgs. all interchange but if you want to run much more than a 4.10 you will need spacers with the thick thick gears
Posted By: W.I.N. Racing
Re: Does anyone make custom gears? - 09/05/09 11:49 AM
You can get some made but you will pat BIG $$$$ (best estimate is $2000+) for them. If you want a source and contact # PM me.
The cost will include the Engineering, Summary development, material cost, Machine time, Heat treat and matching.
The cost will include the Engineering, Summary development, material cost, Machine time, Heat treat and matching.
Posted By: jcc
Re: Does anyone make custom gears? - 09/05/09 12:20 PM
Likely be the same $ for say a 742? And if bought in multiples cost be much better per pair? Sounds like the start of a group buy to me.
Posted By: Quicktree
Re: Does anyone make custom gears? - 09/05/09 12:24 PM
why the need for such a gear? even with a diesel you would think something a little lower would work? is he racing daytona with it? 
Posted By: DoctorDiff
Re: Does anyone make custom gears? - 09/05/09 02:18 PM
It is impossible to make a ratio that high for a stock Dana 60 housing/carrier.
Posted By: rt66jim
Re: Does anyone make custom gears? - 09/05/09 02:36 PM
Thank all of of you for your replies. Since this build is a diesel and is being setup for 1/4 mile racing. The RPM limit on the engine is 4500. The trans will be a turbo 400 built by Neal Chance. According to the Wallace cal. A 2.86 would do the job. But if you allow a little for converter slip it needs to be a little taller. Jim
Posted By: rt66jim
Re: Does anyone make custom gears? - 09/05/09 02:37 PM
Quote:Cass can the stock Dana 60 hsg be machined so it would work? Jim
It is impossible to make a ratio that high for a stock Dana 60 housing/carrier.
Posted By: Quicktree
Re: Does anyone make custom gears? - 09/05/09 02:40 PM
Quote:
Thank all of of you for your replies. Since this build is a diesel and is being setup for 1/4 mile racing. The RPM limit on the engine is 4500. The trans will be a turbo 400 built by Neal Chance. According to the Wallace cal. A 2.86 would do the job. But if you allow a little for converter slip it needs to be a little taller. Jim
taller tire.
Posted By: DoctorDiff
Re: Does anyone make custom gears? - 09/05/09 02:54 PM
I don't think the stock housing can be easily modified.
You could run a 3.07 geared Dana 61 rear.
You could also try a used set of 2.47-2.76 gears in a Nodular 9" casting with Daytona pinion support and 35 spline Detroit Locker or spool. I don't know how the 28 spline pinion would hold up, however.
You could run a 3.07 geared Dana 61 rear.
You could also try a used set of 2.47-2.76 gears in a Nodular 9" casting with Daytona pinion support and 35 spline Detroit Locker or spool. I don't know how the 28 spline pinion would hold up, however.
Posted By: rt66jim
Re: Does anyone make custom gears? - 09/05/09 07:53 PM
Quicktree, don't have any more room for taller tires. He doesn't want a 9" in it. It's a Mopar thing. 
Jim
Jim
Posted By: 360view
Re: Does anyone make custom gears? - 09/06/09 01:09 PM
When looking in a salvage yard
what vehicle and year
would have the Dana 61 with 3.07 ?
I would like to get one to replace a Chrysler 9.25 with 3.21, or I would like to find a QuikChange diff.
Back in the 1980s
there was a guy near Mt Vernon KY
who just personally liked cutting gears
and had an extensive shop with much older gear cutting machinery.
He could make nearly any gear style including hypoid and did one-off jobs for the mining and trucking industry.
I am not sure if he is still alive or still working.
what vehicle and year
would have the Dana 61 with 3.07 ?
I would like to get one to replace a Chrysler 9.25 with 3.21, or I would like to find a QuikChange diff.
Back in the 1980s
there was a guy near Mt Vernon KY
who just personally liked cutting gears
and had an extensive shop with much older gear cutting machinery.
He could make nearly any gear style including hypoid and did one-off jobs for the mining and trucking industry.
I am not sure if he is still alive or still working.
Posted By: Garceau
Re: Does anyone make custom gears? - 09/06/09 01:22 PM
Run a one speed glide in there and let that torque go to work!
Posted By: DoctorDiff
Re: Does anyone make custom gears? - 09/06/09 01:34 PM
Some late '70s-early '80s Ford 3/4 ton trucks used Dana 61 rears. You also can use the front ring and pinon out of an early '90s Dodge diesel/automatic 4 x 4 truck in the Dana 61 rear housing.
Posted By: moeflo
Re: Does anyone make custom gears? - 09/06/09 02:03 PM
Quote:
When looking in a salvage yard
what vehicle and year
would have the Dana 61 with 3.07 ?
A Dodge/Cummins truck with a 3sp torqueflite is probably the easiest place to find them. '89 through 91.5 model years I believe. Non intercooled trucks. Anything with an OD was 3.54 or steeper.
Posted By: theclutcher
Re: Does anyone make custom gears? - 09/06/09 02:30 PM
Quote:
Quicktree, don't have any more room for taller tires. He doesn't want a 9" in it. It's a Mopar thing.
with a turbo 400?
The nine inch would be less intrusive into the "mopar thing" realm.
maybe a gear vendors unit would help with a dana 61.
interesting build.
Posted By: Bob_Coomer
Re: Does anyone make custom gears? - 09/06/09 02:51 PM
Quote:Quote:Call Dana Corporation
I have a friend building a 5.9 Cummins 73 Dart. He needs the rear gearing to be in the 2.5/2.7 range does anyone make custom gears for a Dana 60? Jim
I had a set of those gears, sold them to a member for $50..I always thought those would make a sweet street gear for a large engine 550+cubes and a set of 30" tall tires.
Posted By: rt66jim
Re: Does anyone make custom gears? - 09/06/09 06:52 PM
There were bread delivery type trucks built with 4 cyl Cummins engines. They had adapters on them and ran turbo 400 trans. Dennis has acquired on of these setups after talking with Neil Chance Trans. They have said the can set this up to be bullet-proof behind the Cummins. With the motor limited to 4500 and tire limited to 32". The rear gear needs to be about 2.70. Jim
Posted By: mopar65
Re: Does anyone make custom gears? - 09/06/09 07:20 PM
Hey jim what kind of times does your friend think his dart will run? also how much torque does he think it will make? I found this in my newest Diesel power mag. SO if a 5.9 cummins will fit in a 67 camaro i do not see why it wont fit in a dart. Tell him i said best of luck to him and would like to see some pics when he is done. Mopar65 
.jpg "5465853-67part2_0003(Large).jpg")
Posted By: mopar65
Re: Does anyone make custom gears? - 09/06/09 07:24 PM
second pic and let me say this is the only way i would own a chevy camaro lol Mopar65
.jpg "5465858-67camaro5.9cummins_0002(Large).jpg")
Mopar65
Posted By: DoctorDiff
Re: Does anyone make custom gears? - 09/06/09 08:08 PM
A local guy just built a Cummins powered Chrysler demolition derby car 
Posted By: 360view
Re: Does anyone make custom gears? - 09/07/09 01:31 PM
Interesting about the Cummins 4 cyl diesels in the bread delivery trucks with GM automatics.
Would that same bell housing made for the Turbo 400 allow you to use a
4 cylinder Cummins
with one of the new GM 6T70 six speed automatics ?
http://www.theautochannel.com/news/2005/08/25/141299.html
Would that same bell housing made for the Turbo 400 allow you to use a
4 cylinder Cummins
with one of the new GM 6T70 six speed automatics ?
http://www.theautochannel.com/news/2005/08/25/141299.html
Posted By: rt66jim
Re: Does anyone make custom gears? - 09/07/09 02:45 PM
Bobby, what mag is that article on the Camaro in? I don't know if that late GM trans will bolt up in place of a Turbo 400 or not. He's thinking it should make 1500 lb ft of torque and 1000 HP. He want's to run in the 8's with it. He was very successful with his pulling tractor. Knows his stuff on diesel's. Jim