|
|
 Speedometer Gear Change for Larger Tires
#815525
05/30/07 09:47 PM
|
Joined: Jun 2006
Posts: 77
OP
Getting the Wheeling Fever
|
I saw this listed in the Specialized part Number Repository:
Part # : MD705462 - Gear, Speedometer Drive (N=22): For 4.625 gearing and 33" tires
Other parts to go with that assembly:
MF472536 - Spring Pin, Speedometer Drive Gear (3x16mm)
MD701788 - O-ring, Speedometer Drive Gear (10.3mm)
MF520403 - O-ring, Speedometer Drive Gear Casing (35mm)
What I can't figure out (my truck isn't near me right this second) is if my truck has the 4.625 gears to be able to use this, and if I need the other parts to go with it.
Would be a nice cheap $20 fix to make my speedo accurate, as I have 33 x 12.50s.
My truck is an 85 SWB 2.6L / 5-Speed.
*************************************
TripleJack
85 GenI SWB 2.5/5-Speed on 33s
*************************************
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: TripleJackInGA]
#815526
05/30/07 10:59 PM
|
Joined: Feb 2005
Posts: 7,458
Trail Leader
|
It is most likely that your truck has the 4.625 gears, with the 4.875's being the option. Try as I might, I have not found 4.875's in a Gen I (YET!!!).
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: rxinhed]
#815527
05/31/07 12:04 AM
|
Joined: May 2007
Posts: 19
Need a Spot
|
this may sound like a pretty noob question... but how do you find out what gears you have?
cars:
88' montero SWB (turbo 2.6l project)
03' S2000w/hardtop (daily ride)
91' crx dx (my never ending project)
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: 88turbomontero]
#815528
05/31/07 01:22 AM
|
Joined: Jan 2000
Posts: 7,309
Trail Leader
|
Check the information plate on the firewall... it'll say either 4625 or 4875. I'll leave it to you to add a decimal and round it off. That's your homework.
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: rxinhed]
#815529
05/31/07 05:19 AM
|
Joined: Jan 2003
Posts: 1,741
Body Damage is Cool
|
It is most likely that your truck has the 4.625 gears, with the 4.875's being the option. Try as I might, I have not found 4.875's in a Gen I (YET!!!). to this day the 4.8 gears i found and got are the only ones i have seen.they sure i nice with 35's
87 dodge power ram 50,35" tires,5 1/2" total lift,4.6 gears,lockers front and rear,Rancho RS5000's,custom front bumper,custom rock sliders,cct extended diff breathers,75 amp alt(40 amp stock),thorely header,K&N,wheeled hard...
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: powerRam50]
#815530
05/31/07 06:26 AM
|
Joined: Feb 2005
Posts: 7,458
Trail Leader
|
I helped a buddy sell a Gen II about 2 years ago. In hindsight, I still maybe could have used two parts from it. It was equipped with the rear locker and 4.875's, but what a beat truck.
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: PHIL_]
#815531
05/31/07 01:16 PM
|
Joined: Jun 2006
Posts: 77
OP
Getting the Wheeling Fever
|
Check the information plate on the firewall... it'll say either 4625 or 4875. I'll leave it to you to add a decimal and round it off. That's your homework. The only things under the hood are a plate on the firewall that tells you the engine model, which I think was G54B, then the emmisions info sticker under the hood, then the idle set screw/vacuum routing sticker, then the one that's half japanese about something. I then looked on the doorjamb, but that only tells the build date, GVWR, and tire size. I'm still stumped on finding out the gear ration on this thing.
*************************************
TripleJack
85 GenI SWB 2.5/5-Speed on 33s
*************************************
|
|
|
Re: Speedometer Gear Change for Larger Tires
[Re: TripleJackInGA]
#815532
05/31/07 02:22 PM
|
Joined: Jan 2003
Posts: 1,741
Body Damage is Cool
|
it is the one on the firewall that tells engine size.tward the bottom it should say somthing like axle code.
87 dodge power ram 50,35" tires,5 1/2" total lift,4.6 gears,lockers front and rear,Rancho RS5000's,custom front bumper,custom rock sliders,cct extended diff breathers,75 amp alt(40 amp stock),thorely header,K&N,wheeled hard...
|
|
|
|
