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Unread 09-19-2014, 12:59 PM   #1
Darryl
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1978 CJ7 
 
Join Date: Mar 2008
Location: Sedona, AZ.
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Changing tires on 87 Wrangler with 4.56 gears

I recently purchased this 87 Wrangler with a 350 FI and Whipple super charger. It has 37" tires that are way to big for my liking. I know that going to say a 31" tire the 4.56's are going to make it like 5.13 or lower so I am looking for suggestions on what gears to put in it. I plan to dive this daily as well as off road and in the sand dunes.

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Unread 09-19-2014, 01:46 PM   #2
mark242
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1997 TJ Wrangler 
 
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An 87 jeep wrangler is a YJ. Post this in the YJ Wrangler Technical subforum from better help.
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Unread 09-19-2014, 02:32 PM   #3
Jeepsr4me
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what rear axle you got?
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Unread 09-19-2014, 03:38 PM   #4
samuraisavr
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what trans? 37s and 4.56s with a th350 is probably ok, I'd say If you have a 700r4 or 5spd you could keep the 4.56s and go to a 33x12.50 but with no OD 4.56s and 31-33s you'll be driving around at about 3500-3700 @65
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Unread 09-21-2014, 09:57 AM   #5
Darryl
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Quote:
Originally Posted by mark242 View Post
An 87 jeep wrangler is a YJ. Post this in the YJ Wrangler Technical subforum from better help.

Sorry, I repostedhis in the YJ section as well.
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Unread 09-21-2014, 10:02 AM   #6
Darryl
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1978 CJ7 
 
Join Date: Mar 2008
Location: Sedona, AZ.
Posts: 93
Quote:
Originally Posted by samuraisavr View Post
what trans? 37s and 4.56s with a th350 is probably ok, I'd say If you have a 700r4 or 5spd you could keep the 4.56s and go to a 33x12.50 but with no OD 4.56s and 31-33s you'll be driving around at about 3500-3700 @65

I reposted this in the correct forum but to answer your question it is a TH350.
I guess we should switch to the YJ section for further discussion.
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