shuttering on take off? - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

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post #1 of 33 Old 04-23-2010, 04:20 PM Thread Starter
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shuttering on take off?

i have a 4.5 DR lift with 35's on 2000 f250....

after i installed the lift i noticed some studdering when start to accelerate.. its coming from the rear somewhere? everything is torque'd to spec and aligned properly.. this only happens under moderate acceleration.. anyone know what this could be? am i experiancing "axle wrap"?

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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post #2 of 33 Old 04-23-2010, 04:30 PM
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id say more likely a tranny problem than rear end. Mine has a shutter sometimes in high HP tunes.

2002 F250
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post #3 of 33 Old 04-23-2010, 04:37 PM Thread Starter
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dont think its the tranny...but on that note.. i havent installed my chip yet(havent had time LOL) so its still stock..i also have a JW valve body that i have to install.. so we will see if that helps.. thanks for your input.

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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post #4 of 33 Old 04-23-2010, 04:40 PM
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Well, just thought id throw that out, i know thats what wrong with mine. but that PHP will make a world of difference man!

2002 F250
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post #5 of 33 Old 04-23-2010, 04:44 PM Thread Starter
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i think i will get a chance to install my vb,chip and do an oil change tomorrow morning.... if the RAIN holds off! gotta love BC.

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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post #6 of 33 Old 04-23-2010, 05:09 PM Thread Starter
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any other thoughts on what this could be?

it sounds like the noise i get when im turning a corner and it shutters... but i know that is because of my rear solid axle... it sounds similar to this but on a straight away.

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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post #7 of 33 Old 04-23-2010, 05:20 PM
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did you put a shim in your steady bearing? did you check you u joints?

2004 f-350 cc 6.0l
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post #8 of 33 Old 04-23-2010, 05:29 PM Thread Starter
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my front end is perfect, ujoints are tight, all drag link and tie rods are brand new with moog...but im not sure about shim your referring to?

sorry for the lack of knowledge on the terminology... im a Carpenter by trade...driveway mechanic by hobby.

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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post #9 of 33 Old 04-23-2010, 05:34 PM
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He's refering to your carrier bearing (if you have a 2 piece driveshaft). I just installed a 6" lift and I've got the same shudder you're talking about. You need to make sure your carrier bearing is shimmed properly and maybe look into getting some traction bars


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Early 99 F250 with a bunch of extra junk...
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post #10 of 33 Old 04-23-2010, 05:36 PM Thread Starter
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for traction bars.. could i take the bracket mounts for a shock and weld them to my axle then and fab up my own bars?

im not sure what the carrier bearing is or where its located.. ill have to look it up in the haynes.

2000 F250 lariat 7.3 - 4.5'' Donahoe Racing/Bilstein 5100's/BDS DualSS with Blisteins/20''MotoMetals/35's toyo's/08tailgate
/09 taillights/07 bumper, 07 billet grille/07headlights/Recon clear Cab lights/Chicken lights/dynamatt/zoodad/6637 Intake/MBRP 5" Exhaust
/Diprocol gauges/JohnWoods valvebody/6.0 Trans Cooler/Pioneer Avic D3/Bushwacker Flares/PHP tunes/AMP Research/ 8.5' Western MVP plus
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