Has anyone experienced a vibration from just off idle to 5mph after converting to the dana 60 and raising the rear?
I have a vibration that I don't remember having before the change over. Thought it might have been my center bearing since it was wore out. Had it replaced and the vibration is still there. Don't think it has anything to do with the front since I got the vibration before installing the front driveshaft. Could it be the change in the angle of the rear axle? The 5.5" blocks changed the angle as not to bind the u-joint.
__________________
97' F250 4x4 crew cab. 4:10 gears,High Idle mod, Dana 60 conversion using 3"SKY RSK w/03' SD springs and 3 3/4" rear blocks to level. Tymar, Issopro gauges on 3 gauge pod, 3" down pipe, shimmed FPR and DP tuner 6 pos. chip (12-13-07). http://community.webshots.com/user/amberjax
Hey Mike, you need to lower the carrier bearing, when I went from 2" blocks to 4" blocks I lowered mine 3\4 and the vibration went away. I used a magnetic angle finder and think I ended up with 11* on both sides of the bearing. Also did you use tapered blocks or straight blocks? I was told to use straight blocks and thats what I used with no issues after I lowered the bearing. Good Luck
Frank
__________________ http://community.webshots.com/user/dieseldutton
1997 F-250 H.D 4X4 CREW CAB SHORT BED, MBRP 4" TURBO BACK, 16K REESE, 3:55, Auto Meter Sport Comp gauges, tri pillar, 11\16\05 BDP STAGE 1 INJECTORS, TS 6 POSITION CHIP, TYMAR INTAKE 3/27/06 B.T.S. , SIRIUS RADIO, BDP IDM, 4" 350 BLOCKS,160,000 SP Exhaust Brake, 7/4/07 6.0 Intercooler, 7/29/07 Blackbirds Customs rear disc 9/11/07 King Pin Dana 60, SKY 3" RSK, V code 5200 lbs SD springs, 10/17/07 Pro Comp Xtreme's 315x75x16 on Pro Comp 1059's 8"x16" 1/27/08 DIY Fuel System, Running on DSE since March 2008
2004 Pitbull Motorsports rigid chopper
121 TP 130rwh 250 avon
04 CRF250 mine
02 CR80 sons
03 XR100 daughters
425 Polaris magnum
500 Polaris sportsman and 300 lakota everyones
1998 27.5 Wilderness 5th wheel
just as easy to use a 1" square tube with longer 5/16" bolts
__________________
1997 F250 FireTruck Red,CC SB,auto( Prescion TC, HD-2Tugger),5" exhaust, custom Swamp 195cc Hybrid injectors, TWildman 4-pos chip,open air cleaner, I/C w Banks intake, 225,000km,AIC,dual electric fans,Sky mfg RSK w/ D60w/ARB locker,Ramsey 15k# winch, BFG/AT 315's, F450 rear springs, home of Craig's Performance Diesel pictures
" lying is a cheap way out of reality, the real cost is the loss of respect and trust"
I'm not sure why the angled blocks dont work, someone said something about our two piece driveshafts [img]/ubbthreads/images/graemlins/shrug.gif[/img] I guess some trucks use a one piece drive shaft. The 1" square stock and longer bolts is to lower the carrier bearing (center bearing)down to get the proper drive shaft angle.
Frank
__________________ http://community.webshots.com/user/dieseldutton
1997 F-250 H.D 4X4 CREW CAB SHORT BED, MBRP 4" TURBO BACK, 16K REESE, 3:55, Auto Meter Sport Comp gauges, tri pillar, 11\16\05 BDP STAGE 1 INJECTORS, TS 6 POSITION CHIP, TYMAR INTAKE 3/27/06 B.T.S. , SIRIUS RADIO, BDP IDM, 4" 350 BLOCKS,160,000 SP Exhaust Brake, 7/4/07 6.0 Intercooler, 7/29/07 Blackbirds Customs rear disc 9/11/07 King Pin Dana 60, SKY 3" RSK, V code 5200 lbs SD springs, 10/17/07 Pro Comp Xtreme's 315x75x16 on Pro Comp 1059's 8"x16" 1/27/08 DIY Fuel System, Running on DSE since March 2008
2004 Pitbull Motorsports rigid chopper
121 TP 130rwh 250 avon
04 CRF250 mine
02 CR80 sons
03 XR100 daughters
425 Polaris magnum
500 Polaris sportsman and 300 lakota everyones
1998 27.5 Wilderness 5th wheel
Angled lift blocks ALLWAYS mess with something. They are designed to be a cheap way out of lenghtening the driveline. Drivelines have specific requirements for angles to keep them from vibrating. By rotating the pinion up you change the angle thru the rear u-uoint setting up torsional vibes. Flat blocks keep the pinion angle the same as stock.
This angle change issue is the reason the carrier bearing has to be shimmed down when lifting the truck. Restores the angle thru the center u-joint to what it was before the lift.
__________________
Mine: 91 F250 Reg Cab 4x4 5spd 7.3IDI 4.10LS 145,000 miles. Banks Sidewinder 92 D60 F axle w 97 brakes and Powerlock. Lift: about 4" over stock 250. 33x12.50x16.5 Pro Comp MTs Magnaflow 12" muffler. Sees dirt everyday. Used to haul hay, wood, feed cows, check fence.
Hers: 96F250 CCSB 7.3 PSD 4x4 5spd 3.55 LS 190,000 miles. Puchased 7/03, Looked for a 5spd CCSB for a year!Dana 60 front axle, at stock F350 height (for now) Energy Poly bushings, Bilsteins, 305/70/16 Pro Comps on 16x10 Weld Outbacks, AFE Pro7,TYMAR 3x3.5x4 downpipe,TYMAR 5" straightpipe, gutted EBV, IH Non EBV pedistal,New Alliant AC Injectors,(stage 1)Cal reg kit, SBC Con O clutch, permenent clutch bushing fix, AC mod with a different twist, AMP Powersteps with custom brackets and wiring(one of 2 OBS trucks with them according to AMP) Line of Fire. Sees dirt everyday.
My Company pickup: 86 F250 6.9 C6 320,000 miles Co trucks 5 89 to 94 IDI's, plus about 50 more diesels.
Diesel Mechanic 28 yrs
You may not need new blocks. I ended up turning mine around so that I get a bit more downward pinion angle. I was having problems with vibrations because the pinion was basically pointing straight towards the carrier bearing. Under load the axle would twist and the pinion would twist upwards causing vibration and possible parts breakage. Just by turning my blocks around, the pinion is now basically pointing straight ahead at rest. This provides a bit if 'preloading' to the axle, so that under load, the axle would rotate up and basically straighten up pointing to the carrier bearing.
Look carefully at your angles and make sure that your total angles equal about 0. This means that if you have a 10* down angle at the carrier, then you should have roughly the same oposite angle at the carrier. Also remember that the pinion will twist upwards under load, so pre-load the pinion angle to allow for this.
__________________
'95 F250 XLT 4X4 Ext Cab long bed, 5 speed, SMFW, custom kevlar LuK clutch by Superior Friction San Jose, 3.55 LSD, '88 kingpin D60, Sky RSK with SD V code springs, 175K miles, ATS 1.15 BB turbo, BDP Stage 2.5 injectors, BDP fuel system, 4 line Stealth, '02 120V IDM, ARP studs, Spearco 7.3 intercooler, 3" intakes, Northern Diesel Performance 6-pos TS chip w/TW tunes, guages, Tymar intake, EBPS bypass mod, IH bellowed uppipes, 4" DP, straight exhaust, 200PSI train horns and 215A alternator..
Thanks Radar,
I'll give it a shot.
Cary,
I got your PM and I'll let you know if I need them and can't get them locally. I really need to fix the vibration by Thursday. I'm taking the truck down to Oregon Inlet on Friday for a beach drive.
__________________
97' F250 4x4 crew cab. 4:10 gears,High Idle mod, Dana 60 conversion using 3"SKY RSK w/03' SD springs and 3 3/4" rear blocks to level. Tymar, Issopro gauges on 3 gauge pod, 3" down pipe, shimmed FPR and DP tuner 6 pos. chip (12-13-07). http://community.webshots.com/user/amberjax
Radar,
I'm almost done with the switch. Just came in to feed the kids lunch. So far it looks like it may help. I'll let ya know in a little while.
Thanx!
__________________
97' F250 4x4 crew cab. 4:10 gears,High Idle mod, Dana 60 conversion using 3"SKY RSK w/03' SD springs and 3 3/4" rear blocks to level. Tymar, Issopro gauges on 3 gauge pod, 3" down pipe, shimmed FPR and DP tuner 6 pos. chip (12-13-07). http://community.webshots.com/user/amberjax
Linear Mode
