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73 on my GPS speedo app on my phone. 1988 M998 with 6.5 non turbo and 3 speed on 37's. Truck was not happy for sure. Normal tollway speed around 65ish..

With the addition to some aftermarket items to my new to me 1988 Humvee I was wondering what the best brand spraypaint is out there to give the closest match to the original CARC paint on the truck ? The generally available "military" paint doesn't come close, hence my question. Also where to...

I live in the city with gas stations literally on every corner so as A rule I never let it go below 1/2 a tank...

I thought about doing a gear change AND a 4 speed to really excel on the tollway but as the above said I have 2.56 gears anyways so. Waiting to hear on the success / outcome of the 700R4 swap and then I will prob pull the trigger and go that route..

Yup ! My truck which has brand new tires, fresh alignment, and will cruise at 60-65mph comfortably. If I push it alittle harder the fastest I have seen (on my gps speedo app) has been 73mph but the truck def. wasn't happy. If I could maintain 70-75 with the engine rpm's alittle lower and the...

Could you PM me with exactly where you picked up this setup from , and also a list of what it came with ? Cause, if you got basically a complete "kit" for a 4 speed and everything to go along with it for under $4k i'm sold !

Question: Looking to do something about the stock 3 speed in my 1988 Humvee and its looking to be either a 4L80E swap or a Gear Vendor under / overdrive unit. Coming from the hot rod world I have experience with both setups but I haven't heard (not can find anyone) that has added a Gear Vendor...

I have a air horn setup for my Humvee I have yet to install. Came from a company out of the "lone star" state and was made per my request. 10 gallon air tank, 24volt compressor, wiring, 150psi switch, and a 35'' single air horn. I had a similar setup on my old turn diesel Ford Excursion and was...

This piece also came with the same rope rubber seal thing as you mentioned. I wasn't satisfied with that alone so out came the 3 tubes of silicone !

This piece is some sort of fiberglass / injection molded plastic of some sort.

On ebay as I mentioned above: ebay link removed, site rule...

1988 Humvee Project: Installed my "Bed / Cargo Divider" today. Had the day off and took advantage of the "heat wave" Chicago was having with temps in the lower 50's and installed my "Bed Divider" I picked up offa good ol Ebay. I am by no means a mechanic but I have built a few racecars and...

Best place to source one of these fancy 200A units ?

This might be a dumb question but where should the gauge sit in "perfect" working order condition ?

Evening, My new to me 1988 Humvee has been running like a top since I have owned it for the past month or so. I have noticed though the voltage gauge likes to "jump" around while driving. It is either in this position: Or this one: The truck never changes the way it's running / No power...

Found and closed the vent as you mentioned. Still blows cold air but not nearly as much. Think I am going to give it a solid coolant flush once it's in the shop but for the cash I think a secondary / Mojave heater is in the trucks near future...

In what position on the heater controls "closes" the outside vent ?

I have only owned the truck for alittle over a month and the Chicago cold has kept me from messing around with it too much in the garage. Guess my first step is to get some insulation / dynamat and go that route first, then I can worry about replacing / adding a secondary heater. Like I said the...

I haven't cleaned out the cooling system as of yet, but its on the list when the truck goes in for its "upgrades".. Never thought about the roll insulation idea, makes sense !

I hear ya on the load situation. My truck is going under the knife in a few weeks and my buddy who is helping me wire the thing is a genius when it comes to wiring and the such. We are using a 24v-12v step down convertor and a 3rd battery setup just for the 12volt items we are adding to the truck.