ratrapp
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Everything posted by ratrapp
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h/o 4.0 block with renix intake will it look?
ratrapp replied to asm4mcc's topic in MJ Tech: Modification and Repairs
i did something backwards.i used a 99-up intake on a renix block with a ho head but kept the renix style exhaust manifold.it bolted up but within 3 weeks it blew the exhaust gasket completely out of the rear of the head where the ports don't line up correctly.i switched to a ho style atp header and a new downpipe a few months ago and all is well.you may get lucky and it doesn't blow out gaskets but some of us didn't. -
that borgeson looks like a nice piece but for my truck i can buy 2 of the stock style crown pieces and last a long time.i really don't wheel my truck unless it's you count the snow so a stocker should work fine.
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i believe next friday i'll bite the bullet and order one.
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anyone use the crown steering shafts?i found them on ebay for $98 plus shipping.mine is pretty well shot and every one in the j/y is worn at as bad as mine or worse.
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WJ to XJ/MJ hy steer conversion
ratrapp replied to MiNi Beast's topic in MJ Tech: Modification and Repairs
seems to be more trouble than it's worth to me. -
those boxes are the biggest piles of crap.they'll let you down at the worst time.there quality control has sucked lately.about 20 years ago they were great,no so much.
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anybody ever use rustys air intake for the xj?thinking about buying one but not sure.
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i got my complete setup(booster,m/c and prop valve)for $45 from a junkyard.i spent like $20 buying lines and fittings.it was one of the best upgrades i've done to the truck.don't forget to bypass the rear brake valve.
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power steering pumps and more...
ratrapp replied to blue monday's topic in MJ Tech: Modification and Repairs
as hornbrod stated,they are a factory two piece a/t trans tube on the aw4.also if your making a bad connection at the wiper module under the steering column it will cause a slow wipe. -
wheni got my booster from the j/y i made sure to get the booster spacer with it.
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Damper Pulley? Vas Is?
ratrapp replied to Buckeye Charly's topic in MJ Tech: Modification and Repairs
i got a professional products one for like $80 bucks.a dorman brand from advance or federated autoparts may be a little cheaper. -
definitly do the booster/mc upgrade from the 96 cherokee.i did and it made a good difference to me.it definitly cuts into the braking,especially at higher speeds.
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4.7 in a truck may seem underpowered but i worked at a chrysler dealership for 5 years and the 4.7s in a wj have plenty of power for a suv.maybe by the time they hit an auction and have been neglected they are underpowered.
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i don't know about all that.i did the swap with a 93 ho -head fresh out of the machine shop.i used a 99 up intake,ho style tb and already had the newer style 4 hole injectors and used the mopar mls head gasket that is a few thousands thinner than the paper gasket.i didn't really notice any extra power.i didn't swap the from renix style exhaust manifold so maybe that's holding me back.we'll find out soon since my atp ho style header and downpipe and new o2 sensor just showed up yesterday afternoon.so we'll see if that's what's holding me back.i already had a 2 1/2 exhaust and 2 chamber flowmaster and k&n filter on the truck.strangely when i changed the exhaust,air filter and switched the axles and transfer case fluid to redline synthetic i did feel a slight difference in mpg and power,but not with the head/intake change.
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the o2 sensor can definitly cause your problem.mopar actually recalled some o2 sensors from the comanche.i had the one on my 88 replaced free when i worked at a chrysler/jeep dealer about 9 years ago.
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yeah,i did the swap and even used the 99-up style intake with a 93 ho head.i spent a couple hundred dollars and all i succeeded in doing was fixing my oil leaking head gasket.i laso believe the power increase from a ho is mostly in the pcm and electronics of it.
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I've got the Serpentine belt blues
ratrapp replied to Comanche County's topic in MJ Tech: Modification and Repairs
4.0 belts have to be pretty tight to not squel.i use the cheaper brand bando belts on my vehicles and haven't had any problems.the glazing is probably from the belt slipping from not being tight enough.the belt dressing stuff is bad for serpentine belts.i would just get a new belt and gradually tighten it. -
i swapped to a 93 ho head and the newer 99-up intake on my 88 and seen very little gain in power and no increased fuel economy.besides fixing an oil leaking headgasket it was a waste of time.
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Engine Technology
ratrapp replied to Worlds Fastest Comanche's topic in MJ Tech: Modification and Repairs
you'll really start getting into the money when you start swapping from a non jeep drivetrain.nothing is as easy as it seems and always cost more.not saying anything isn't possible but the extra few mpg's you may get is going to take along time to recoup from money spent on the swap.just my two cents.i would just rebuild the 2.5 and be done with it. -
Brake system failures an MJ commonality ? ? ?
ratrapp replied to AMC-MJ's topic in MJ Tech: Modification and Repairs
i have just about completely quit using reman master cylinders.i try to use new ones in my shop that i work at.even if i have to wait several days to get it it's worth the wait. -
looks like more trouble and money than what it's worth to me.i'll just keep looking for some cherokee or mj seats.
