Dana 70 help??? - Pirate4x4.Com : 4x4 and Off-Road Forum

sw99 · 10-13-2003, 02:28 PM

The axle is from an 85' F350, this is all I know for sure. I searched the Dana site and ran the BOM. The site does not tell me much, or atleast I don't know what to look for. The BOM is 605247-4, on the webbing it says, 70 1SU. Is this just a dana 70U and what does that mean?

Does it accept the regular d70 gears and locker choices?? How low is the gearing options? Thanks for the help, my ass is numb from searching for three hours.

Also, on the actual tag, the BOM says 605247-4 LS . I'm guessing it's for the limited slip?? I really need to know if I can still get a detroit and some 5.13 - 7. ???? on the gears.

Proeliator · 10-15-2003, 09:39 PM

And I thought they were just putting in Sterlings then...
The LS is for limited slip, like you figured. No reason why you can't just stuff in that detroit and 5.13s. Same thing I run in my 70.

speedo · 10-17-2003, 04:51 AM

If it is a 70U, which it sounds like it is, then everything is the
same as a 70B except for the inner pinion bearing set. The cup is
the same as a 60 but the bearing has the same id as a regular
70, 70B, 70HD. So if your not going to replace pinion bearings
just consider it the same as a 70B. And if you need some inner
pinion bearings for a 70U let me know I've got some left over
after buying some gearsets for 70U to use in a 70B.

Gus

jaluhn · 10-18-2003, 08:04 AM

Quote:

Originally posted by Proeliator
And I thought they were just putting in Sterlings then...

Mid 85 is the changeover. I suspect a build date around 1/85 is when it changed. Early 85's run the d70. I also suspect they went to the later design 6.9 block at the same time.
-John

sw99 · 10-18-2003, 06:11 PM

Thanks for the info guys! Looks like this should be a pretty damn stout axle for a 4500 lb. buggy.

u2slow · 10-19-2003, 10:03 AM

My buddy's 85 F250 (supercab diesel) came with a Dana 70 as well. He swapped in gears from an 80's Chevy cube van (G-series, DRW, cutaway). How's that for interchange?

wildbroncobilly · 10-20-2003, 05:31 PM

I just swapped in this 85 D70 from a diesel utility body SRW it's very stout

http://www.superford.org/registry/ve...a.php?id=86579

sw99 · 10-21-2003, 08:38 AM

Nice pics Bill! That is a sweet looking F150 you got there. Nice to get rid of that TTB crap, huh? Yall got some serious rust out der.

wildbroncobilly · 10-22-2003, 05:06 PM

Yeah solid axle was the only way to go! We get lots of snow up here
http://www.superford.org/registry/ve...a.php?id=80916

82F100SWB · 10-22-2003, 11:08 PM

The 10.25 was not used in all diesel applications from 85 on, I had an 85 diesel 250 parts truck with a 10.25, but, my 86 F350 Crew Cab 4x4 SRW has a D60 front/70 Rear. From what I have seen, the early post 10.25 high GVWR diesel applications still used dana axles.
Evan

10-13-2003, 02:28 PM	#1 (permalink)
sw99 Registered User Join Date: Nov 2002 Member # 15049 Location: COLORADO Posts: 1,702	Dana 70 help??? The axle is from an 85' F350, this is all I know for sure. I searched the Dana site and ran the BOM. The site does not tell me much, or atleast I don't know what to look for. The BOM is 605247-4, on the webbing it says, 70 1SU. Is this just a dana 70U and what does that mean? Does it accept the regular d70 gears and locker choices?? How low is the gearing options? Thanks for the help, my ass is numb from searching for three hours. Also, on the actual tag, the BOM says 605247-4 LS . I'm guessing it's for the limited slip?? I really need to know if I can still get a detroit and some 5.13 - 7. ???? on the gears. __________________ 1986 K30 Last edited by sw99; 10-13-2003 at 04:24 PM.

10-15-2003, 09:39 PM	#2 (permalink)
Proeliator Registered User Join Date: May 2002 Member # 12042 Location: a den of iniquity Posts: 7,065	And I thought they were just putting in Sterlings then... The LS is for limited slip, like you figured. No reason why you can't just stuff in that detroit and 5.13s. Same thing I run in my 70. __________________ [QUOTE=94stepsideford;7266691]Seth is scarier than you though. He looks like he would kill and eat a baby with his bare hands.[/QUOTE] '73 F250, 533 on N2o, 35spln chromo Superior/CTM D60/D70, twinsticked 205, hydro-assist, f&r lockers, HAD drivelines, 46" Titan R1s. Vid: [url]http://youtu.be/KaL-IsCWrrI[/url] [url]http://youtu.be/l9cuRoEfCn0[/url] Last edited by Proeliator; 10-15-2003 at 09:42 PM.

10-17-2003, 04:51 AM	#3 (permalink)
speedo Granite Guru Join Date: Oct 2003 Member # 23262 Location: Talkeetna, Alaska Posts: 938	70U If it is a 70U, which it sounds like it is, then everything is the same as a 70B except for the inner pinion bearing set. The cup is the same as a 60 but the bearing has the same id as a regular 70, 70B, 70HD. So if your not going to replace pinion bearings just consider it the same as a 70B. And if you need some inner pinion bearings for a 70U let me know I've got some left over after buying some gearsets for 70U to use in a 70B. Gus

10-18-2003, 06:11 PM	#5 (permalink)
sw99 Registered User Join Date: Nov 2002 Member # 15049 Location: COLORADO Posts: 1,702	Thanks for the info guys! Looks like this should be a pretty damn stout axle for a 4500 lb. buggy. __________________ 1986 K30

10-19-2003, 10:03 AM	#6 (permalink)
u2slow Registered User Join Date: Apr 2001 Member # 4243 Location: Salt Spring Island, BC Posts: 3,068	My buddy's 85 F250 (supercab diesel) came with a Dana 70 as well. He swapped in gears from an 80's Chevy cube van (G-series, DRW, cutaway). How's that for interchange? __________________ 90-93 CTD jalopies

10-20-2003, 05:31 PM	#7 (permalink)
wildbroncobilly Registered User Join Date: Dec 2001 Member # 8646 Location: Massachusetts Posts: 31	I just swapped in this 85 D70 from a diesel utility body SRW it's very stout http://www.superford.org/registry/ve...a.php?id=86579 __________________ 04 Jeep Rubicon Tons of upgrades on 35"MTRs 02 F350 Powerstroke

10-21-2003, 08:38 AM	#8 (permalink)
sw99 Registered User Join Date: Nov 2002 Member # 15049 Location: COLORADO Posts: 1,702	Nice pics Bill! That is a sweet looking F150 you got there. Nice to get rid of that TTB crap, huh? Yall got some serious rust out der. __________________ 1986 K30

10-22-2003, 05:06 PM	#9 (permalink)
wildbroncobilly Registered User Join Date: Dec 2001 Member # 8646 Location: Massachusetts Posts: 31	Yeah solid axle was the only way to go! We get lots of snow up here http://www.superford.org/registry/ve...a.php?id=80916 __________________ 04 Jeep Rubicon Tons of upgrades on 35"MTRs 02 F350 Powerstroke

10-22-2003, 11:08 PM	#10 (permalink)
82F100SWB Fawkin Fordhead Join Date: Nov 2002 Member # 15263 Location: Winterpeg, Canada Posts: 2,048	The 10.25 was not used in all diesel applications from 85 on, I had an 85 diesel 250 parts truck with a 10.25, but, my 86 F350 Crew Cab 4x4 SRW has a D60 front/70 Rear. From what I have seen, the early post 10.25 high GVWR diesel applications still used dana axles. Evan __________________ 96 F350 XL CC PSD/5 speed 4x4... New Tow pig in the making 96 F250 XLT Ex Cab PSD/5 speed 4x4... DD/Tow Pig 92 W250 LE, CTD/5 speed 4x4, tow pig/DD/snow pushin pig 86 F250... 460/T19/1345/D60/welded 10.25, 44 Boggers, reg cab, some junk... Build

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