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Yeah 1900 is a bit low, the 4.0L is in fact a quite rev happy engine, peak HP is 4600rpm and peak torque is 3200rpm. Honestly When I ran my TJ I found myself running it in 4th rather than 5th quite a bit because it seemed happier, it liked running around the 2500rpm range at cruise. The 3.08...

Yup, warming oil up is a seldom thought about advantage to coolant to oil coolers. They are great at maintaining an average temperature, but air to oil coolers can help cool more quickly and without transferring the heat to coolant. Even when its 100* outside, thats a lot cooler than 200*+ oil...

One should also note that it is possible to overcool a transmission as well. You really do want a transmission to run at around 190*F plus or minus 10*. This will ensure that the transmission will be running warm enough to cook out any or most of the condensation that will naturally occur during...

Gears that are not matched to tire size is a HUGE contributor to transmission failures. A combination of increased tire weight, and the tire being physically bigger thus causing the torque converter to not lock or unlock at appropriate RPMs/ speed puts more load on the transmission and builds...

Our Terrain has the 2.4L ecotech, wich was supercharged from the factory in the Cobalt SS. The factory supercharged engine ran different pistons and tuning naturally, but from what I can tell the naturally aspirated engines will handle 8 or pounds easy with an ECM tune. The factory super charged...

My wife has a Terrain and while I really like it, it is quite low. I actually kinda want to lower it and supercharge it...

I hear ya, leaks can really be a pain in the butt. I will admit that having been a HD on highway truck mechanic for 10 years, air leaks are a fact of life and you do get really good at finding them. Definitely one of those experience things... To that end, a spray bottle with soapy water in it...

Regear the truck low and slow down. Figure out how and where you particular engine does its best work and gear the truck appropriately. A buddy of mine has a 19 Taco on 35s and runs 5:13 gears. His average cruise speed is about 60 and empty he sees 18mpg and loaded for camping it drops to around...

My recommendation would be to look at air bags. When I put them on my old pickup it was a HUGE game changer. It improved ride quality and off-road ability (I was able to remove leaves from the packs making the springs softer) and increased load carrying ability. When empty you can run the air...

Very cool, but tread carefully. There are states (Maine and I believe California, there is talk in Washington as well) that will not issue registration for those and other Kei trucks/vans. As they do not meet federal motor vehicle standards for the year of their manufacture they are technically...

Generally speaking you need 6" of lift on the square wheel well Silverados to clear 35s. You can get away with 4" with the correct wheels but you will need to trim the bumper and the rear of the wheel well. To run 35s with no lift you may need to figure out a way to clearance the foot wells (yes...

Yeah, the Wagoneers have an extremely soft frame, you can literally bend it with a 12" crescent wrench. Me personally I wouldnt trust it with much more than the AMC V-8s without it torquing too much. The J trucks have a MUCH stouter frame, more in line with what Ford and Chevys had. That being...

Having owned a few SJ Jeeps, if you were to swap into a Wagoneer I would look for a Benzo diesel (like an OM616) because the frames on those guys are kinda cheezey. In order to run a Cummins or other industrial style diesel you would need to box or maybe even sleeve the frame.

Thats fair, all the more reason to stick with an old school mechanical or early pre emissions commons rail (the exhaust stuff kills all of the sound, also the multi injection common rails (a thing mostly for emissions) makes them run super quiet). I'm with you I LOVE the sound of a straight six...

That sucks that shops in your area aren't worth anything. I guess up here we are just a bit different, when I worked for Caterpillar we worked on on highway trucks (naturally specializing in Cats) but also stuff as diverse as a 1966 C600 Ford and a 1989 British Leyland bus... As far as diesels...

I would avoid the normal shops for exactly the reasons you state. Your average mechanic thrives on volume. I would try calling up some guys that do restorations. Sometimes those shops like getting in something different and that doesn't require the level of polish they typically do. Also a...

I just saw this thread, super awesome build. 99% of cavitation in the older Navistars is from incorrect coolant. Most people put standard green automotive coolant in the 6.9 and 7.3 and end up havving issues with pitting cylinders and the front cover behind the water pump. Run a heavy duty...

As far as I know they are reverse engineered military Jeeps from ones left in India post WWII. They just kept making them and improving them over the years. Its essentially the same thing as Royal Enfield Motorcycles, nobody told the India factory to stop manufacturing, lol. That said a lot of...

I always thought it would be cool to get a titled but "lost" old jeep (CJ2 or something) and just pretend the Mahindra is that Jeep:hushed:

I hope this is a thing. My previous employer had a Mahindra with the diesel and it was a very well built little rig. More than once I thought it would be fun to own one. Only disadvantage of the Mahindra is that they are not street legal in the US due to not meeting safety standards (though I...