Replacing the speedo gear would hold true for any Wrangler except the
Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
t-case for the speedo signal...remember, it uses a different Tcase than the
standard Wrangler. Hence, the computer probably *will* have to be
recalibrated. Or you can get a Superlift TruSpeed speedo recalibration unit,
but I think a trip to the dealer will probably be less expensive.

"Troy" <troy@ .> wrote in message
news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
> He is going to have to buy a speedo gear from the dealership, according to
> the ring and pinion gear he already has. I used this link to figure mine
> out: http://www.raingler.com/tech/speedoChart.asp
>
> Funny thing is that the parts guy at my dealership said I'd have to
> reflash my computer but I bought the proper speedo gear anyway (he said it
> wouldn't work). It does.
>
> I really think its a bad idea not to change the gears with that size tire,
> might be doable with 3.73 but my jeep had 3.07 with a manual transmission
> when I went to 33's and it was so bad I didn't drive it until I could buy
> the gears.
>
> Troy
>
>
> "Rich" <harrisfam1988@verizon.net> wrote in message
> news:XwIPf.1602$ky1.188@trndny06...
>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>> lift it and put 35" tires on without a gear change. (not a choice I'd
>> make but non-the less). He's wondering what he can do to recalibrate the
>> Speedo without going to the stealership. I'd know what to do if he had a
>> CJ. My guess is he needs a computer reprogramming. True?
>> Thanks
>> Rich
>>
>
>

 

Replacing the speedo gear would hold true for any Wrangler except the
Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
t-case for the speedo signal...remember, it uses a different Tcase than the
standard Wrangler. Hence, the computer probably *will* have to be
recalibrated. Or you can get a Superlift TruSpeed speedo recalibration unit,
but I think a trip to the dealer will probably be less expensive.

"Troy" <troy@ .> wrote in message
news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
> He is going to have to buy a speedo gear from the dealership, according to
> the ring and pinion gear he already has. I used this link to figure mine
> out: http://www.raingler.com/tech/speedoChart.asp
>
> Funny thing is that the parts guy at my dealership said I'd have to
> reflash my computer but I bought the proper speedo gear anyway (he said it
> wouldn't work). It does.
>
> I really think its a bad idea not to change the gears with that size tire,
> might be doable with 3.73 but my jeep had 3.07 with a manual transmission
> when I went to 33's and it was so bad I didn't drive it until I could buy
> the gears.
>
> Troy
>
>
> "Rich" <harrisfam1988@verizon.net> wrote in message
> news:XwIPf.1602$ky1.188@trndny06...
>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>> lift it and put 35" tires on without a gear change. (not a choice I'd
>> make but non-the less). He's wondering what he can do to recalibrate the
>> Speedo without going to the stealership. I'd know what to do if he had a
>> CJ. My guess is he needs a computer reprogramming. True?
>> Thanks
>> Rich
>>
>
>

 

Replacing the speedo gear would hold true for any Wrangler except the
Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
t-case for the speedo signal...remember, it uses a different Tcase than the
standard Wrangler. Hence, the computer probably *will* have to be
recalibrated. Or you can get a Superlift TruSpeed speedo recalibration unit,
but I think a trip to the dealer will probably be less expensive.

"Troy" <troy@ .> wrote in message
news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
> He is going to have to buy a speedo gear from the dealership, according to
> the ring and pinion gear he already has. I used this link to figure mine
> out: http://www.raingler.com/tech/speedoChart.asp
>
> Funny thing is that the parts guy at my dealership said I'd have to
> reflash my computer but I bought the proper speedo gear anyway (he said it
> wouldn't work). It does.
>
> I really think its a bad idea not to change the gears with that size tire,
> might be doable with 3.73 but my jeep had 3.07 with a manual transmission
> when I went to 33's and it was so bad I didn't drive it until I could buy
> the gears.
>
> Troy
>
>
> "Rich" <harrisfam1988@verizon.net> wrote in message
> news:XwIPf.1602$ky1.188@trndny06...
>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>> lift it and put 35" tires on without a gear change. (not a choice I'd
>> make but non-the less). He's wondering what he can do to recalibrate the
>> Speedo without going to the stealership. I'd know what to do if he had a
>> CJ. My guess is he needs a computer reprogramming. True?
>> Thanks
>> Rich
>>
>
>

 

O crap I wasn't thinking when I saw the RUBICON part, lol. He's running
4.11 gears (4.10?) either one of those two. I was gonna ask that but I just
got off work today and I'm tired. I've run 4.10's on my TJ with 33's, and
noticed when I was going up dunes or deep mud it'd bog a bit, so I upgraded
to 4.56's. I lost some top end but it feels like I can pull a tree out of
the ground now.

Troy

"Rich" <harrisfam1988@verizon.net> wrote in message
news:XoJPf.1483$aF3.130@trndny02...
> Oh I totally agree with you about gear changing. My CJ7 has 33's and I'm
> running 4:10 gears. They are about as high as I'd go with 33's. 4:56 would
> be a better choice at a minimum for him. Some people have to find out for
> themselves. He will. It s funny he's a nice guy, he comes to me for advice
> all the time, but never takes it. Then finds out later I was right.... Go
> figure.
> You can lead a horse to water, but making him drink is his own decision,
> eventually he'll get thirsty though.
> Rich
>
>
> "Troy" <troy@ .> wrote in message
> news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
>> He is going to have to buy a speedo gear from the dealership, according
>> to the ring and pinion gear he already has. I used this link to figure
>> mine out: http://www.raingler.com/tech/speedoChart.asp
>>
>> Funny thing is that the parts guy at my dealership said I'd have to
>> reflash my computer but I bought the proper speedo gear anyway (he said
>> it wouldn't work). It does.
>>
>> I really think its a bad idea not to change the gears with that size
>> tire, might be doable with 3.73 but my jeep had 3.07 with a manual
>> transmission when I went to 33's and it was so bad I didn't drive it
>> until I could buy the gears.
>>
>> Troy
>>
>>
>> "Rich" <harrisfam1988@verizon.net> wrote in message
>> news:XwIPf.1602$ky1.188@trndny06...
>>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>>> lift it and put 35" tires on without a gear change. (not a choice I'd
>>> make but non-the less). He's wondering what he can do to recalibrate the
>>> Speedo without going to the stealership. I'd know what to do if he had a
>>> CJ. My guess is he needs a computer reprogramming. True?
>>> Thanks
>>> Rich
>>>
>>
>>
>
>

 

O crap I wasn't thinking when I saw the RUBICON part, lol. He's running
4.11 gears (4.10?) either one of those two. I was gonna ask that but I just
got off work today and I'm tired. I've run 4.10's on my TJ with 33's, and
noticed when I was going up dunes or deep mud it'd bog a bit, so I upgraded
to 4.56's. I lost some top end but it feels like I can pull a tree out of
the ground now.

Troy

"Rich" <harrisfam1988@verizon.net> wrote in message
news:XoJPf.1483$aF3.130@trndny02...
> Oh I totally agree with you about gear changing. My CJ7 has 33's and I'm
> running 4:10 gears. They are about as high as I'd go with 33's. 4:56 would
> be a better choice at a minimum for him. Some people have to find out for
> themselves. He will. It s funny he's a nice guy, he comes to me for advice
> all the time, but never takes it. Then finds out later I was right.... Go
> figure.
> You can lead a horse to water, but making him drink is his own decision,
> eventually he'll get thirsty though.
> Rich
>
>
> "Troy" <troy@ .> wrote in message
> news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
>> He is going to have to buy a speedo gear from the dealership, according
>> to the ring and pinion gear he already has. I used this link to figure
>> mine out: http://www.raingler.com/tech/speedoChart.asp
>>
>> Funny thing is that the parts guy at my dealership said I'd have to
>> reflash my computer but I bought the proper speedo gear anyway (he said
>> it wouldn't work). It does.
>>
>> I really think its a bad idea not to change the gears with that size
>> tire, might be doable with 3.73 but my jeep had 3.07 with a manual
>> transmission when I went to 33's and it was so bad I didn't drive it
>> until I could buy the gears.
>>
>> Troy
>>
>>
>> "Rich" <harrisfam1988@verizon.net> wrote in message
>> news:XwIPf.1602$ky1.188@trndny06...
>>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>>> lift it and put 35" tires on without a gear change. (not a choice I'd
>>> make but non-the less). He's wondering what he can do to recalibrate the
>>> Speedo without going to the stealership. I'd know what to do if he had a
>>> CJ. My guess is he needs a computer reprogramming. True?
>>> Thanks
>>> Rich
>>>
>>
>>
>
>

 

O crap I wasn't thinking when I saw the RUBICON part, lol. He's running
4.11 gears (4.10?) either one of those two. I was gonna ask that but I just
got off work today and I'm tired. I've run 4.10's on my TJ with 33's, and
noticed when I was going up dunes or deep mud it'd bog a bit, so I upgraded
to 4.56's. I lost some top end but it feels like I can pull a tree out of
the ground now.

Troy

"Rich" <harrisfam1988@verizon.net> wrote in message
news:XoJPf.1483$aF3.130@trndny02...
> Oh I totally agree with you about gear changing. My CJ7 has 33's and I'm
> running 4:10 gears. They are about as high as I'd go with 33's. 4:56 would
> be a better choice at a minimum for him. Some people have to find out for
> themselves. He will. It s funny he's a nice guy, he comes to me for advice
> all the time, but never takes it. Then finds out later I was right.... Go
> figure.
> You can lead a horse to water, but making him drink is his own decision,
> eventually he'll get thirsty though.
> Rich
>
>
> "Troy" <troy@ .> wrote in message
> news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
>> He is going to have to buy a speedo gear from the dealership, according
>> to the ring and pinion gear he already has. I used this link to figure
>> mine out: http://www.raingler.com/tech/speedoChart.asp
>>
>> Funny thing is that the parts guy at my dealership said I'd have to
>> reflash my computer but I bought the proper speedo gear anyway (he said
>> it wouldn't work). It does.
>>
>> I really think its a bad idea not to change the gears with that size
>> tire, might be doable with 3.73 but my jeep had 3.07 with a manual
>> transmission when I went to 33's and it was so bad I didn't drive it
>> until I could buy the gears.
>>
>> Troy
>>
>>
>> "Rich" <harrisfam1988@verizon.net> wrote in message
>> news:XwIPf.1602$ky1.188@trndny06...
>>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>>> lift it and put 35" tires on without a gear change. (not a choice I'd
>>> make but non-the less). He's wondering what he can do to recalibrate the
>>> Speedo without going to the stealership. I'd know what to do if he had a
>>> CJ. My guess is he needs a computer reprogramming. True?
>>> Thanks
>>> Rich
>>>
>>
>>
>
>

 

O crap I wasn't thinking when I saw the RUBICON part, lol. He's running
4.11 gears (4.10?) either one of those two. I was gonna ask that but I just
got off work today and I'm tired. I've run 4.10's on my TJ with 33's, and
noticed when I was going up dunes or deep mud it'd bog a bit, so I upgraded
to 4.56's. I lost some top end but it feels like I can pull a tree out of
the ground now.

Troy

"Rich" <harrisfam1988@verizon.net> wrote in message
news:XoJPf.1483$aF3.130@trndny02...
> Oh I totally agree with you about gear changing. My CJ7 has 33's and I'm
> running 4:10 gears. They are about as high as I'd go with 33's. 4:56 would
> be a better choice at a minimum for him. Some people have to find out for
> themselves. He will. It s funny he's a nice guy, he comes to me for advice
> all the time, but never takes it. Then finds out later I was right.... Go
> figure.
> You can lead a horse to water, but making him drink is his own decision,
> eventually he'll get thirsty though.
> Rich
>
>
> "Troy" <troy@ .> wrote in message
> news:5KednQ688NdWxJLZnZ2dnUVZ_v2dnZ2d@comcast.com. ..
>> He is going to have to buy a speedo gear from the dealership, according
>> to the ring and pinion gear he already has. I used this link to figure
>> mine out: http://www.raingler.com/tech/speedoChart.asp
>>
>> Funny thing is that the parts guy at my dealership said I'd have to
>> reflash my computer but I bought the proper speedo gear anyway (he said
>> it wouldn't work). It does.
>>
>> I really think its a bad idea not to change the gears with that size
>> tire, might be doable with 3.73 but my jeep had 3.07 with a manual
>> transmission when I went to 33's and it was so bad I didn't drive it
>> until I could buy the gears.
>>
>> Troy
>>
>>
>> "Rich" <harrisfam1988@verizon.net> wrote in message
>> news:XwIPf.1602$ky1.188@trndny06...
>>> I've got a neighbor who has a Rubi. 2005 I think. He's getting ready to
>>> lift it and put 35" tires on without a gear change. (not a choice I'd
>>> make but non-the less). He's wondering what he can do to recalibrate the
>>> Speedo without going to the stealership. I'd know what to do if he had a
>>> CJ. My guess is he needs a computer reprogramming. True?
>>> Thanks
>>> Rich
>>>
>>
>>
>
>

 

Good info Matt... I didn't know that...

JimG

"Matt Macchiarolo" wrote in message ...
> Replacing the speedo gear would hold true for any Wrangler except the
> Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
> t-case for the speedo signal...

 

Good info Matt... I didn't know that...

JimG

"Matt Macchiarolo" wrote in message ...
> Replacing the speedo gear would hold true for any Wrangler except the
> Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
> t-case for the speedo signal...

 

Good info Matt... I didn't know that...

JimG

"Matt Macchiarolo" wrote in message ...
> Replacing the speedo gear would hold true for any Wrangler except the
> Rubicon. The Rubicon IIRC uses a tone ring and induction pickup in the
> t-case for the speedo signal...