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Hey all, I have a "civilian" 85-mph speedometer and fuel gauge cluster out of an '88 5th Ave that was converted to the 125 mph cop speedo. Looking for $40+shipping? Located in Fort Collins, CO 80524.

Hey all, so I recently sold my '88 Fifth Avenue which I had converted to 4-bbl and lean-burn delete. I now have the computer that was on the car when I did the conversion and still worked perfectly when pulled, I also have a spare computer that was given to me by the previous owner as a...

Well the time has come to sell my 1988 Fifth Avenue with the original 318, 130,000 miles. Rust-free (except for minor surface rust on trunk lid) car which spent most of its life in Las Vegas since new and was well taken care of. Has all the luxury power features that came standard on these cars...

I finally got my TQ, Eddy Performer, and MSD-ized ELB-deleted '88 5th Ave running tonight. SO much work with the A/C compressor and emissions hardware compared to my '70 Duster, won't be doing anything like this again for a while lol. Anyway I thought it would be a better choice to run a...

I pulled apart my 318 in my '88 5th Ave to convert to 4-bbl intake and replace the timing set but hasty me didn't take pics of the front accessory brackets as I was tearing it down and now I don't remember how they all go back on. Anyone have pics of how the front accessory brackets bolt up...

I have an 8 3/4" housing with 11" brakes in great shape just sitting in my garage. I'm getting an 8 1/4" ready to swap into my '88 5th Avenue and I thought it had 11" brakes but it doesn't (those big finned drums fooled me, shoulda measured or at least looked at the rim of the drum lol). Can I...

I just got all the parts to convert my 5th Avenue over to "conventional" ignition with an MSD box (used free from friend), Blaster 2 coil, and factory electronic distributor (used free from my '70 Duster). I am also planning to do a 4-bbl swap with a ThermoQuad I rebuilt but that's a bit...

After getting dual exhaust cobbled together on my '88 5th Ave it does have more noticeable "punch", or as much as it can anyway with the stock 2.21 gears. Problem now is it seems to run out of fuel if I hold it at WOT for more than 6 seconds or so; doesn't matter if I'm in 1st or 2nd gear if I...

So I have one of those Auxiliary cables for car audio systems that's made into a cassette housing so you can play music off your phone, etc. on an older cassette deck. I tried using it in my 1988 Fifth Avenue system and it seems like the "Auto Reverse" feature is keeping it from playing...

Hey guys, just got an 8.25 rear for pretty cheap (~$80) from an off-roading buddy of mine; came out of a Jeep Cherokee XJ. Pretty sure it was working fine when pulled, he just wanted something bigger for wheeling. Also it has 3.55 gears in it which would be great for my '70 Duster street...

Took my 5th Avenue in today to get it emissions tested; first test failed CO by a good amount so I talked to the mechanic who sold me the car and he said the problem is with the electronic enrichment solenoid in the carb; for some reason it tends to run rich once it's fully warmed up and in...

I've been reading some other threads on here saying that A-body headers tend to fit best on M-bodies; I was taking a look at the '88 5th Ave I'm going to buy and it might have just been my eyes but the passenger side inner fender looks quite a bit closer to the exhaust manifold than I remember...

Location: Fort Collins, CO