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Car Forum / Jeep / January 2007Speedometer gear tooth count...
for a 91 YJ with 4.11's and 33's. Some online charts say 34 tooth, same say 36. Anyone have hands on experience for this one?  SignatureJimG 80' CJ-7 258 CID, HEI 4.56 Gears, Lock-Right F&R 35" BFG MT on 15x10 Centerlines D44 Rear, D30 Front. SOA Dana 300 w/4:1 & Currie twin sticks Warn X8000i w/ dual batteries 00' TJ Sport 4.0L, 5sp 4.56 Gears, TrueTrac rear 33" BFG AT on 15x8 Eagle Alloys D35 Rear, D30 Front. 3" Suspension Lift Warn X8000i > for a 91 YJ with 4.11's and 33's. > Some online charts say 34 tooth, same say 36. Anyone have hands on > experience for this one? Do you have a GPS? I checked the charts for mine and they said either 31 or 32 teeth (I've got 3.54's and 31's). So what I did was checked my actual speed with the GPS, and divided my actual speed by the speed indicated on the speedo. There was a 10% difference. My old gear was a 27 tooth, so 27 teeth plus 10% = 30. I got the 30 tooth and my speedo is exactly dead on. |
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