Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: Bone Shaker on April 17, 2007, 08:26:43 PM

Title: Newbie with lots of questions
Post by: Bone Shaker on April 17, 2007, 08:26:43 PM

I have recently bought a 1995 YJ with the 4 cylinder engine. I will be lifting it and was wondering what diferential gear ratio would I need if I was to run 35" tires

Also where is the best place to buy stuff in town?


Any answers would be greatly apprecaited.

 :mrgreen:

Title: Newbie with lots of questions
Post by: JeepInMud on April 17, 2007, 08:48:43 PM

35's and a 4 cylinder will not be a good combo, you will not have enough power, no matter how you gear it, to get down any kind of road over 85 kph.

I would recommend going to a max. of 33's until you want to swap the motor for something with more jam.

Title: Newbie with lots of questions
Post by: Bone Shaker on April 17, 2007, 08:52:10 PM

will a 4 inch suspension lift clear 33's and should I get a lower gear ratio to run this size tire??

Title: Re: Newbie with lots of questions
Post by: BlackYJ on April 18, 2007, 07:24:37 AM

Quote from: "Bone Shaker"

I have recently bought a 1995 YJ with the 4 cylinder engine. I will be lifting it and was wondering what diferential gear ratio would I need if I was to run 35" tires

Also where is the best place to buy stuff in town?


Any answers would be greatly apprecaited.

 :mrgreen:

Welcome to the World of Jeeps and small bank accounts  :D  :D

As for your question, check out this thread on Jeeps Unlimited, it answers part of your questions, http://www.jeepsunlimited.com/forums/showthread.php?t=815141

35s on any YJ becomes expensive, the reason being, the rear axle.  You have a D35 which I have seen people break on 31s and 35s.  Now with the 4 banger and the stock axles, the lowest you can go is 4.88s, but I would recommend that ratio for 33s (stock ratio is 4.10).  Ideally for 35s and a 4 banger you would want to be around the 5.13 - 5.38 range, but that would involve front and rear axle swaps.

If you plan on doing an engine swap in the future then go with 35s and 4.88s and live with it, as 4.88s with the 4.0L would be very nice.

Do some research, Jeeps Unlimited has tons of YJ info.  If you got any other questions, let us know and we can start the newbie flaming  8)

Title: Newbie with lots of questions
Post by: mudslinginjoel on April 28, 2007, 06:56:21 PM

my buddy a few years back was running 4.88s with 35 inch tires(YJ with the 4 banger),it was ok,worked good,but he wanted more power.....and when he added it,he blew apart the dana 35.....

if your not planning on lots of swaps,I wouldn't go over 33's,with 4.88s,but thats just my opinion