Just a little more . . . . .

How to make it go fast

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Re: Just a little more . . . . .

Postby Remps » Wed Nov 15, 2017 10:03 am

I don't think the 32-35 spline is of much concern, plenty of other weaker links to break. The front takes half the torque on launch anyway. It's tru trac vs detroit locker and what you want to live with.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
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Re: Just a little more . . . . .

Postby BC847 » Wed Nov 15, 2017 4:18 pm

Remps wrote: It's tru trac vs detroit locker and what you want to live with.


THAT, right there.
David

1993 12mm VE Fueled W250 CC, Green
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Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby Remps » Thu Nov 16, 2017 10:02 am

I think if i had to do much trailer backing, boat maneuvering, or mall crawling, I'd shy away from the locker. I think occasional towing with fairly light tongue weight wouldn't hurt anything though.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
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Re: Just a little more . . . . .

Postby BC847 » Sun Nov 19, 2017 8:00 pm

It'd be fair to say I'm not breaking my neck to get under the truck and fixing mess.

Work is sthi. My regular worktruck, with ALL MY work tools is in the frigging shop. I blew a turbo boot. Apparently to make the repairs, they had to remove the turbo. They broke a turbo mounting bolt. Last word is it'll be two weeks for parts and repairs. The deeper they dug, the more poo was found. So, I'm in the spare truck. It has sthi for tools.
Naturally, they scheduled me for a rather involved refrigeration system replacement. Complete.

Somebody failed to return the lifting-straps to the crane-truck. The last idiot to use the torches in the spare truck didn't bother to close the bottle valves so, yeah. All empty. It's Ok though, there's a full spare bottle of acetylene. How do I know it's full? Because the whAt? valve-stem is broken off. With that, the morons can't leave that bottle valve open to leak it all out.

It's been like that all week. :mad:

At this point, both the old and new axles have been removed, stripped-down, chemically cleaned and pressure-washed inside and out. The spring-perches and shock mounts have been removed from the new axle. A few more details and I initially plan to take the axles to the shop come Tuesday.

We'll see.
David

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12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby PToombs » Mon Nov 20, 2017 5:30 pm

Sounds like my week, starting yesterday. Buck up buddy, it's a 3 day week, and then it's TURKEY DAY! :mrgreen:
pete

Just enough power to break everything behind the crankshaft.
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Re: Just a little more . . . . .

Postby BC847 » Wed Nov 29, 2017 7:12 pm

Waiting for parts. :(
David

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Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby PToombs » Thu Nov 30, 2017 5:16 pm

Story of my life, at work. I'm starting to hate UPS, but they seem to do ok with my personal stuff.

Take a deep breath, have a brewski or 6, and it will all work out. ;)
pete

Just enough power to break everything behind the crankshaft.
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Re: Just a little more . . . . .

Postby BC847 » Fri Dec 15, 2017 6:55 pm

Finally got the new rear end.

- 2001 DANA70 (NOT the U) with stock/OEM dual piston caliper disc-brakes.
- Narrowed to match the stock/OEM '93 footprint.
- Spring perches in the '93 location.
- Reused my Spicer 3.54 R&P.
- New pinion bearings, races, and seal.
- Detroit Locker w/new carrier bearings and races.
- 35 spine, chromaloy axle shafts.
- New hub bearings, races, and seals.
- Axle tubes welded to the center housing.
- All assembled less hubs (I gotta put on the brake stuff).


To complete the mess, I've got:
- New rear brake plumbing. Stainless steel hardpipe, and stainless braided flex hoses.
- Reman calipers.
- New 9/16" wheel studs and lug nuts.
- New parking-brake cables.


Now to find the time, and have the weather cooperate.

We'll see. :?
David

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12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby spencerdiesel » Sat Dec 16, 2017 8:43 pm

You've got the determination down that's for sure!
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 6x10 VCO sticks, THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 2 turns in, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
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Re: Just a little more . . . . .

Postby Remps » Sun Dec 17, 2017 5:56 pm

I'm curious as whether 60' times will improve with the instant full equal traction of a locker vs the factory posi. I'd guess not if there wasn't traction issues to begin with. Glad to hear it's coming together.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
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Re: Just a little more . . . . .

Postby BC847 » Sun Dec 17, 2017 6:27 pm

Remps wrote:I'm curious as whether 60' times will improve with the instant full equal traction of a locker vs the factory posi. I'd guess not if there wasn't traction issues to begin with.

That's a good question.

I imagine you've all driven enough to instantly feel the rear-end get loose, never mind on what (see what I did there? :lol: )
At the track, I've felt what I believe was the tires getting loose. And most pronounced during one of the most recent passes while dialing in the trublows. OK, fine.
Researching this locker vs that limited-slip, there were repeated explanations of how the torque was split between this tire that's not slipping, and that one that is. It's not equal in many setups. Lots of design fine-print as it were.
I think it was during those instances, I was overpowering the diff clutch-pac(s), toasting them.

The Detroit Locker don't play that sthi. Two black marks, or you're off the throttle and coasting.

Got the housing hung today. Nutz drew-up a couple of times pulling the U-Bolts up the the 110ft/lb spec. :shock:

Image



With owning and maintaining/repairing this heap since new, in 1993, I've collected enough FSM type of literature to fully support me.

Didn't think about torque specs for the new 2001.5 axle. :roll:

Currently looking:
- Torque specs for the four (4) nuts that hold (what I call the mounting bracket) the entire brake assembly, to the actual axle-tube.
- Torque specs for the two (2) bolts that hold the (what I call the caliper adapter bracket) to that mounting bracket.

Info easily found on the interwebs is somewhat confusing as it appears to me they are talking about the two (2) bolts only. No specific instruction for the four nuts for the assembly to the tube.

Image


As the nuts are accessible from the diff side of the mess, I just pulled those four up to 125ft/lbs for now, I can pull them up more later, then knowing the right figure.

Gotta assemble the hubs/rotors and mount them. Then plug in the axle-shafts. Then mount the brake calipers. . . . etc . . . . etc . . .

Gotta keep moving forward.


And stop laughing at my nose! :rendeer:
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby DMan1198 » Sun Dec 17, 2017 8:24 pm

I know it’s not the right way, but all the fasteners you’ve mentioned I just do with a 1/2” impact at work, I’d pretty much guarantee they’re overtorqued, but they don’t come back either.
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The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
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Re: Just a little more . . . . .

Postby BC847 » Sun Dec 17, 2017 8:44 pm

I'm seeing confusing numbers all the way to 200ft/lbs or so. Not clear which, bolt, nuts, or both.
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby Mooner1 » Wed Dec 20, 2017 7:48 am

Lookin good! Glad to see it coming back together and x2 on the choice to go with the Detroit locker. Speaking for myself; regardless of why I've torn into one of my heaps, performance mods, oil leaks, etc.. just getting a truck back together and driveable is about as good a present as any. Happy holidays to you and yours!
'99 2500, '89 Ramcharger, '83 D-350 Crew Cab, '79 Power Wagon...a pile of trucks, a pile of parts, and not enough time or money..
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Re: Just a little more . . . . .

Postby BC847 » Wed Dec 20, 2017 7:54 pm

I'll be glad when this mess is back on the road, that's for sure.

I've gone to a Dodge dealer/service center and found they have no more info on the torque figures than I do. Chalk in up to a production run of only 1.5 years. Screw it, 125ft/lbs to the brake assembly mounting nuts, 100ft/lbs to the caliber adapter brackets.

Got a little more done before the rain. Discovered a few little "got'chas" along the way. The replacement stainless steel brake plumbing is made for the 2001.5 axle. -> I narrowed the thing 2.5" per side. Derp! Gotta massage the pipes a little to make them fit proper. Then the 2001.5 plumbing was also fastened to the former 2001.5 shock mounts. Derp! The PB cables are about a foot longer than the '93 version. Gotta figure that one out still.

Anyhoo . . .

Image



Still working on it . . .. . :roll:
David

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12.67 @ 103.35
Your basic farm truck ;)
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