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Hard to push Dakota #1193717
03/08/12 10:53 PM
03/08/12 10:53 PM
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ar.
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bobs69 Offline OP
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My 88 Dakota is really hard to push in the staging lane. Was told i need new front callipers. Does anyone know if the stock callipers hold a few pounds of pressure on the pads even when your foot is off the peddal. Also running a 8 3/4 with spool with a 904. I jack up the rear and the rear tires are really hard to turn with the rear brakes backed off. Any ideas. Thanks

Re: Hard to push Dakota [Re: bobs69] #1193718
03/08/12 10:56 PM
03/08/12 10:56 PM
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Posts: 4,616
Kissimmee Fl.
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dusturbd340W5 Offline
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are your brake hoses the original rubber lines if so I have seen them start to come apart on the inside and not let all the pressure off
may be something to check


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Hard to push Dakota [Re: dusturbd340W5] #1193719
03/08/12 10:59 PM
03/08/12 10:59 PM
Joined: Sep 2010
Posts: 75
southwest pa
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bodyworks racing Offline
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When is the last time you did any welding on your truck ?


68 ROADRUNNER 440 HORSE POWER IS HOW FAST YOU HIT THE WALL TORQUE IS HOW FAR YOU TAKE THE WALL WITH YOU
Re: Hard to push Dakota [Re: bodyworks racing] #1193720
03/08/12 11:08 PM
03/08/12 11:08 PM
Joined: Aug 2006
Posts: 813
ar.
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bobs69 Offline OP
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As far as i know the brake hoses are the original. I have owned the truck for a short time and don't know about the last time there was any welding done.

Re: Hard to push Dakota [Re: bobs69] #1193721
03/08/12 11:41 PM
03/08/12 11:41 PM
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Posts: 75
southwest pa
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bodyworks racing Offline
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southwest pa
Did some fab work on my friends dart sport stocker last spring in prep for the race season(new drive shaft loop). we disconected all the electronics , ply back tach msd box ground to battery did not disconect the ground from the engine to the firewall.Welded up the mounts for the loop to the subframe connectors.the car was 2 tenths slower than the first race last year and was very hard to push . we could not figure it out , but talked to another friend , said he welded on his car and the ground some how back fed through the trans and burned from a bearing surface to the rear out put shaft.We were skeptical but pulled the trans and sent it to our trans guy ,bingo. I would try everything else first, very unusual but it happened naturaly i got the blame because i was the welder


68 ROADRUNNER 440 HORSE POWER IS HOW FAST YOU HIT THE WALL TORQUE IS HOW FAR YOU TAKE THE WALL WITH YOU
Re: Hard to push Dakota [Re: bodyworks racing] #1193722
03/08/12 11:48 PM
03/08/12 11:48 PM
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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dusturbd340W5 Offline
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galling the rear output shaft support is a common problem on a 904/727 BUT I highly doubt you caused it welding on the car just bad timing,they where just looking for a fall guy.


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Hard to push Dakota [Re: bodyworks racing] #1193723
03/09/12 12:35 AM
03/09/12 12:35 AM
Joined: May 2006
Posts: 1,260
New Mexico
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Adobedude Offline
pro stock
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New Mexico
Oh crap, don't tell me that...I just put an 8 point in my Dakota, the only thing I worried about was the fuel lines...

Last edited by Adobedude; 03/09/12 12:36 AM.

2001 Dodge Dakota
408 All Motor
11.27 @ 117.83 mph
2017 NM Mopar Challenge Series Champion.
Re: Hard to push Dakota [Re: bobs69] #1193724
03/09/12 07:01 AM
03/09/12 07:01 AM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
My Duster with a 904 and an 8.75 with a spool was really hard to push too. The trans was fine and I had aftermarket discs on all four corners. It didn't seem to affect how it ran though, 10.50's with a 340 so I'm not sure why. The Scamp has the same rear and trans in it but it's a little easier to push but I think it's only because it's about 400 pounds lighter.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Hard to push Dakota [Re: bobs69] #1193725
03/09/12 10:03 AM
03/09/12 10:03 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Dis connect the drive shaft to eliminate the engine
and trans

Re: Hard to push Dakota [Re: bobs69] #1193726
03/09/12 11:02 AM
03/09/12 11:02 AM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
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Sounds like the rear axle housing is bent.

Re: Hard to push Dakota [Re: Challenger 1] #1193727
03/09/12 12:58 PM
03/09/12 12:58 PM
Joined: Jun 2003
Posts: 9,225
Charleston
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sixpackgut Offline
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Charleston
i went thru this 2 years ago at 2 different times. one was the rubber brake line from the main line to the rear was swollen solid not release fluid back out of the calipers. but you said you backed the brakes off

the second was a gaulled output shaft support, i bought a roller bearing support from CRT




Last edited by sixpackgut; 03/09/12 01:01 PM.
Re: Hard to push Dakota [Re: sixpackgut] #1193728
03/09/12 01:33 PM
03/09/12 01:33 PM
Joined: Aug 2008
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Mo.
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So sixpack was that the reason you were having a high rolling resistance ?

Re: Hard to push Dakota [Re: racerx] #1193729
03/09/12 01:52 PM
03/09/12 01:52 PM
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Sweet Home Alabama
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MRMOPAR622 Offline
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This may not help,but I have noticed cars with spools in them or harder to push.


"To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"
Re: Hard to push Dakota [Re: MRMOPAR622] #1193730
03/09/12 04:34 PM
03/09/12 04:34 PM
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR Offline
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Quote:

This may not help,but I have noticed cars with spools in them or harder to push.




Around a corner yes , in a straight line no.

Also to the op , the sprag in the trans is also part of the problem , it's easy to turn the driveshaft in one direction , the sprag is slack , the other way the sprag tightens up and it spins the geartrain in the trans . I don't remember which direction is easier than the other. Jack up the rear and grab a tire, turn one way then the other , it'll be easy one way and not in the other.

Re: Hard to push Dakota [Re: racerx] #1193731
03/09/12 04:44 PM
03/09/12 04:44 PM
Joined: Jun 2003
Posts: 9,225
Charleston
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sixpackgut Offline
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Charleston
Quote:

So sixpack was that the reason you were having a high rolling resistance ?




both issuses caused the same sortof problems. the brake problem i started to notice at the race track, the car would start getting slower then you would start to smell the brakes till it got so bad it wouldnt move. that was the rubber brake line problem

the next problem was the same thing, started getting slower at the track. a couple days later, went to push the car a few feet and almost lost a nut. after some trouble shooting i figured it was in the trans


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Re: Hard to push Dakota [Re: JohnRR] #1193732
03/09/12 06:51 PM
03/09/12 06:51 PM
Joined: Aug 2003
Posts: 43,200
Bend,OR USA
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Cab_Burge Offline
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Quote:

Quote:

This may not help,but I have noticed cars with spools in them or harder to push.




Around a corner yes , in a straight line no.

Also to the op , the sprag in the trans is also part of the problem , it's easy to turn the driveshaft in one direction , the sprag is slack , the other way the sprag tightens up and it spins the geartrain in the trans . I don't remember which direction is easier than the other. Jack up the rear and grab a tire, turn one way then the other , it'll be easy one way and not in the other.


Forward is easy (counter clockwise looking forward under the car)backwards (clockwise) is harder, low ratio helical cut low gear sets make it worst


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Hard to push Dakota [Re: Cab_Burge] #1193733
03/09/12 06:59 PM
03/09/12 06:59 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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Posts: 20,640
in a cattle trailer down by th...
Quote:

Quote:

Quote:

This may not help,but I have noticed cars with spools in them or harder to push.




Around a corner yes , in a straight line no.

Also to the op , the sprag in the trans is also part of the problem , it's easy to turn the driveshaft in one direction , the sprag is slack , the other way the sprag tightens up and it spins the geartrain in the trans . I don't remember which direction is easier than the other. Jack up the rear and grab a tire, turn one way then the other , it'll be easy one way and not in the other.


Forward is easy (counter clockwise looking forward under the car)backwards (clockwise) is harder, low ratio helical cut low gear sets make it worst




Yeah, makes sense now as I had a low gear set in my 904.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Hard to push Dakota [Re: Cab_Burge] #1193734
03/09/12 07:03 PM
03/09/12 07:03 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Quote:

Quote:

Quote:

This may not help,but I have noticed cars with spools in them or harder to push.




Around a corner yes , in a straight line no.

Also to the op , the sprag in the trans is also part of the problem , it's easy to turn the driveshaft in one direction , the sprag is slack , the other way the sprag tightens up and it spins the geartrain in the trans . I don't remember which direction is easier than the other. Jack up the rear and grab a tire, turn one way then the other , it'll be easy one way and not in the other.


Forward is easy (counter clockwise looking forward under the car)backwards (clockwise) is harder, low ratio helical cut low gear sets make it worst




Either way it turns it gets hard to push... 1 tire
has to go farther so they are both dragging(1 is
going a longer distance and the other is trying to
go the shorter distance but they TRY to average out
so they BOTH drag)

Re: Hard to push Dakota [Re: MR_P_BODY] #1193735
03/09/12 07:36 PM
03/09/12 07:36 PM
Joined: Mar 2004
Posts: 2,475
SW Ohio
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cgall Offline
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Get your truck off the ground and check the fronts, should spin freely even with factory brakes. Pull driveshaft and check the rears. I'm with Challenger1, you may have a bent rear housing. If you are running an 8-3/4 without a back brace and have any kind of power at all, you may have tweaked it.

Re: Hard to push Dakota [Re: cgall] #1193736
03/10/12 10:51 AM
03/10/12 10:51 AM
Joined: Jan 2003
Posts: 1,009
Richmond Twp. Mi.
Mr340 Offline
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Richmond Twp. Mi.
Quote:

I'm with Challenger1, you may have a bent rear housing. If you are running an 8-3/4 without a back brace and have any kind of power at all, you may have tweaked it.




give me some ideas on how to check for this... can it be done with it in the car or does it have to come out?

Thanks.

Last edited by Mr340; 03/10/12 10:52 AM.
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