HOrnbrod

Yes, very true John. No idea on the RPM timing curve, but I do look at timing with the light occasionally and it's jumps around quite a bit on the lower RPMs but settles down pretty steady at around 3K RPM @ ~18*-22* BTDC or so, and 3K RPM is about what I cruise at on the freeway. Non-freeway mileage was actually worse (around 12) until I swapped in a throttle body MAP from a 96 last year. I do have an adjustable MAP encapsulated circuit box I've never used and forgotten about until now. A got it years ago from a guy on the strokers forum who used to build them. I suppose I could wire it in and play with different MAP input voltages to see if it helps the around-town mileage. But the adj. MAP voltage only alters the A/F ratio at throttle openings over 80% and before the engine is up to temperature in open loop. The ECU regulates the A/F mix all other times, so it probably wouldn't help much.

I'd send the seller an email and ask WTF. Maybe there's an explanation we don't know about. For sure I've never seen aftermarket parts in a sealed Mopar box before. Does the Ebay seller have a good rep? Good feedback? A lot of dealership parts departments sell on Ebay too. One of those? Send me a PM with the seller's ID when you get a chance...........

Any p/n at all stamped on the shocks?

I think the seller pulled a switch-a-roo Adam. Is the Mopar p/n stamped anywhere on the shock body? It should be, as you know. I'd send the seller an email - if no response report the seller.

Where did you get these "Mopar" parts? Online or from the dealer?

Yes, mostly city driving nowadays. I suppose I should be thankful for the decent mileage I do get on the highway. :thumbsup:

7+ MPG difference? Thanks for the simple explanation gog, but no way man, that's not close to normal for for any Jeep I6 I've ever had, or any other vehicle. It's not a big deal - I'm just curious if anyone else has run into this.

I can relate, although it's not MPH that causes such a wide MPG disparity for me, it's city vs. highway. Quick specs: 91 LWB, bored / stroked 4.6L with modded and and balanced intake and exhaust systems, 31's, 2WD w. 4.10 rear, and stock AW4, mid-grade fuel, 23.5 fuel tank. For a tankful of 100% highway driving I have averaged at least 21 MPG consistently for years. I normally cruise at 70-75 MPH. For a tankful of 100% stop and go "running around town" type driving I'm lucky to get 14, usually 13.x MPG. Consistently. I have no idea why there is such a difference. Even driving super conservatively around town, the best I can get is 14MPG. Any ideas outside of always driving at speed on the interstate?

Because the part number you provided crossed to a carbed 2.5 unit, so I'm not sure you have the right pump for your engine. Normally carbed pumps run at a much lower pressure than a TBI pump. Just because it ran down the driveway doesn't mean it's right. But I'm no 2.5 engine expert either.

Have you done a pressure test yet on the fuel pump?

You will have no problems running SpiderTrax spacers with those skinny tires. :rotfl2:

Replace the O2 sensor?

Yes, but the wheel bolt pattern is different (6 on 5.5). Same with the Honda Passport.

The real funny thing is that neither will ever happen. They don't give a damn about a retro Comanche or Cherokee. The marketeers are only interested in putting new fannies in the seats of completely nondescript vehicles that share a heritage with the originals in name only. And most all Jeep buyers could care less too, except old school XJ and MJ guys like us. The best cash cow Jeep has now is the JK according to all I read. So I think the only hope for Fiat/Jeep to mass produce another truck will be something based on the existing JK platform. That's better than anything else I've seen..........

What about the TJ D44? Thought they were the same width as the MJ/XJ axle. I know the bolt pattern's the same.....

It is weird. In the 81-86 parts manual it shows the UCA mounting system identical to the later MJ/XJ models up to 1991.

I don't see anything in this thread that I'd consider - except for the FC in the hellcat powered wrangler pic background. :yes:

Recommend installing a flex joint at the header / exhaust pipe junction. Will help protect that expensive header from cracking. Thanks again to daking for pointing that out originally. :thumbsup:

A few guys have installed them on MJs. They seem to fit just fine as long as you're not running the 1999 and up "horseshoe" intake manifold. Even then they can be made to fit with some grinding on the header..

So sad to hear. I talked with Lee Hurley a couple of times in his shop during Peter's MJ speed record campaign, and Lee himself said he had never met a more intelligent and enthusiastic individual. Coming from gruff old Lee, that was one hell of a compliment.

Si, 7120.

Outside of some port polishing it's a stock head. I do have the unicorn of headers though, the long extinct Mopar Performance long tube header by Mike Leach. Wish it still looked like this though.............. Note: Added "long tube" to keep the porn theme going, but that's what it's really called. :yes:

You're a sick man yxmj. :rotfl2:

Stroked and Blown???? Maybe I wasn't wrong when I put "porn" I the subject line :dunno: Yep - you nailed it. :yes:

Do it! I'd love to see your real world WOT numbers before and after. It might just be the "nudge" I need. :cheers: