33" tires and 4.56:1 gears. What about speedo?
08-10-2014, 11:15 PM
#1
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Model: Cherokee
33" tires and 4.56:1 gears. What about speedo?
Okay with my lift I am going from stock 225/75 to 33" tires and from a 3.55:1 ring and pinion to either a 4.11:1 or a 4.56:1 (haven't decided). My question here is since I am re gearing the differentials (4.11:1 seems to be closest to stock) will my speedo gear still need replacing to be correct?
08-11-2014, 07:21 AM
#2
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Year: 2001
Model: Cherokee
Not sure the tooth number on the stock gear is, but here is the chart. I wouldn't base what gears to put in by what speedo gear you'll need. That's the cheapest part.... 4.56 in my 01 XJ w/33's is awesome. Feels like stock.....
08-11-2014, 07:56 PM
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Year: 97
Model: Cherokee
Engine: 4.0L
When I ran 33s with 4.56s my speedo was almost dead on with the stock speedo gear. Depends on the tire. Not all 33s actually measure 33".
08-11-2014, 10:13 PM
#6
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Year: 1991
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Engine: 4.0 I-6
My understanding is that with 33" tires and 4.56 gears it should put you really close to stock and you shouldn't have to change the speedo gear.
08-11-2014, 11:45 PM
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08-12-2014, 07:13 AM
#11
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Year: 1999
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Yes you do need to change to gear as the speedometer does not register correctly, been there and went that route. Easy and cheapest part of the upgrade as I recall mine was at least 5mph off and maybe a little more using GPS to check. For so little money why not have the speedometer read correctly.
08-12-2014, 11:40 AM
#12
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Year: 2001
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Yes you do need to change to gear as the speedometer does not register correctly, been there and went that route. Easy and cheapest part of the upgrade as I recall mine was at least 5mph off and maybe a little more using GPS to check. For so little money why not have the speedometer read correctly.
08-13-2014, 04:06 PM
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Year: 1994...mostly...
Model: Cherokee (XJ)
Engine: 4.0L I6 HO, Lot's of Bolt Ons
4.56 for 33's is the way to go...
Same Setup, never bothered with changing the speedo gear. For the money I think it's worth it.
Same Setup, never bothered with changing the speedo gear. For the money I think it's worth it.
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