power options for a '89 4.0 - Jeepz.com

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power options for a '89 4.0

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#1 (permalink)

Old

02-26-2007, 01:03 PM

blown XJ

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Cherokee

1989

rusty's long arm

35 bfgs for the street. 33 ltbs and 33 boggers for wheeling

Real Name: chance stitzell

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power options for a '89 4.0

i have a 1989 jeep xj with 209,000 miles on it just lifted it and running 35. the motor runs stong but i want more power right now i have a borla header and catback with not cat. i play in the mud alot is there any good boltts on the i can do, with out scarifice durablity and not makeing it a vacumn for water i have many deep holes i play in (some in excess of 4 feet) any help would be great

Last edited by blown XJ; 02-26-2007 at 01:16 PM..

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#2 (permalink)

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02-26-2007, 01:41 PM

TwistedCopper TwistedCopper is offline

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Re: power options for a '89 4.0

That's a no-brainer... with 35" tires the only significant increase in power will come from re-gearing your axles.

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#3 (permalink)

Old

02-27-2007, 01:08 PM

blown XJ

blown XJ is offline

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Jeep :

Year :

Lift :

Tires :

Cherokee

1989

rusty's long arm

35 bfgs for the street. 33 ltbs and 33 boggers for wheeling

Real Name: chance stitzell

Join Date: Feb 2007

Location: lebanon oregon

Posts: 332

Re: power options for a '89 4.0

Quote:

Originally Posted by TwistedCopper

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That's a no-brainer... with 35" tires the only significant increase in power will come from re-gearing your axles.

i know i need it regeared but i can afford that at the moment its like a grand to have it regeared what gears should i go with??

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#4 (permalink)

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02-27-2007, 01:32 PM

Utah_jeepster Utah_jeepster is offline

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TJ Wrangler

2001

4"

33"

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Re: power options for a '89 4.0

4:56 will bring you on the econo side of gas millage
4:88 will to you to other side but give you more torque.

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#5 (permalink)

Old

02-28-2007, 12:20 PM

blown XJ

blown XJ is offline

Senior Member

Jeep :

Year :

Lift :

Tires :

Cherokee

1989

rusty's long arm

35 bfgs for the street. 33 ltbs and 33 boggers for wheeling

Real Name: chance stitzell

Join Date: Feb 2007

Location: lebanon oregon

Posts: 332

Re: power options for a '89 4.0

i will need a low gear carrier right?? i have heard that i will

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#6 (permalink)

Old

04-02-2007, 09:18 PM

smell my dirty poodle smell my dirty poodle is offline

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Re: power options for a '89 4.0

depends on the axle you have I needed one for my dana 30 but not for my dana 44

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