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Differential Questions #1029116
07/10/11 01:45 AM
07/10/11 01:45 AM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN
Hey guys, hoping somebody can help me. I have a 8.25" axle. When i turn the axles back n forth, it clunks. I can grab the axle and pull (like your pulling the axle shaft put) and there is play. How much play is normal? Or should there be no play at all? Thanks for any info!

Re: Differential Questions [Re: '84 D150 Shorty] #1029117
07/10/11 01:56 AM
07/10/11 01:56 AM
Joined: Jan 2011
Posts: 492
Kansas
BEINGmeISaCRIME Offline
mopar
BEINGmeISaCRIME  Offline
mopar

Joined: Jan 2011
Posts: 492
Kansas
Seeing as the axle shafts are only held in by C-clips a small amount of play is normal, a larger amount and by that like... 3/8" would definitely indicate a problem. If you were somewhere around 1/16 and 1/8ths I would think you'd be fine.

Re: Differential Questions [Re: '84 D150 Shorty] #1029118
07/10/11 01:59 AM
07/10/11 01:59 AM
Joined: Jan 2003
Posts: 8,016
Polson, MT
DoctorDiff Offline
master
DoctorDiff  Offline
master

Joined: Jan 2003
Posts: 8,016
Polson, MT
8 1/4" and 9 1/4" pickup axle shafts tend to have a lot of in-and-out play. This doesn't seem to hurt anything, however.

Re: Differential Questions [Re: DoctorDiff] #1029119
07/10/11 02:37 AM
07/10/11 02:37 AM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
Doc said it all..


I am truckless..
Re: Differential Questions [Re: '84 D150 Shorty] #1029120
07/10/11 08:04 AM
07/10/11 08:04 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
pull the inspection cover,then pull the cross pin to see if it is worn and causeing the spiders to have to much backlash/clearance.

I have had some that were worn bad and clunked going it to drive,old trick is to turn the pin and make it clunk going in to revs and not drive

spider set and a new pin has fixed a few of my clunky 8 1/4s and 9 1/4s right up

Re: Differential Questions [Re: scratchnfotraction] #1029121
07/10/11 11:33 AM
07/10/11 11:33 AM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN
The spider gears themselves seem ok, and the teeth on ring pinion and spiders all look ok. There does appear to be some looseness in the spider gear set though. Since some play is normal, would it help tighten things up a bit if I replace the shims under the spiders and installed a new cross pin?

Re: Differential Questions [Re: '84 D150 Shorty] #1029122
07/10/11 11:45 AM
07/10/11 11:45 AM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN
Oh yeah, and the passenger side axle had more side play for some reason, that normal too?

Re: Differential Questions [Re: '84 D150 Shorty] #1029123
07/11/11 04:45 PM
07/11/11 04:45 PM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN

Re: Differential Questions [Re: '84 D150 Shorty] #1029124
07/11/11 05:17 PM
07/11/11 05:17 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
yes i have used new shims and spider gear set along with a new pin

pull the pin to see if thats where the slop comes from on the gears..i have just used new pins also


Re: Differential Questions [Re: scratchnfotraction] #1029125
07/11/11 07:26 PM
07/11/11 07:26 PM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN
How tight should the gears be on the pin??

Re: Differential Questions [Re: '84 D150 Shorty] #1029126
07/11/11 07:44 PM
07/11/11 07:44 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
they should rotate but not wobble


I am truckless..
Re: Differential Questions [Re: 340SHORTY] #1029127
07/11/11 11:38 PM
07/11/11 11:38 PM
Joined: Sep 2007
Posts: 738
TN
'84 D150 Shorty Offline OP
Pickup Man
'84 D150 Shorty  Offline OP
Pickup Man

Joined: Sep 2007
Posts: 738
TN
Mine wobble :-(







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