The Geo/Chevy Prizm branding is even more interesting when you consider that the 84-88 Chevy Nova preceded it and was also built at the NUMMI (now tesla) plant along side the corolla.

I had a 1987 and it was probably one of the highest quality US built/US badged small cars at the time.

The engine fan alone, which doesn’t typically have the advantage of free forced air due to rear engine placement and relatively low speeds can often use 7-9% of an entire engines fuel alone.

Add in coolant loops for heaters or fans for cooling and there are several opportunities for improving efficiency by offloading…

Remember that those transmissions are a v-drive configuration, and it does appear that the “driveshaft” which GM calls the “propeller shaft” in their repair manuals is what failed.

As those Allison transmissions being v-drive and the motors running in reverse rotation compared to truck transmissions may make sourcing…

In modern 4x4s this is a non-issue as the traction control applies enough breaking to cause the gears to bias the output. Pre traction control one could lightly ride the brakes to accomplish the same thing.

My main reason for adding it was to get rid of the power being cut out when in sand which it completely…

As someone who spent his highschool days driving a 67 cougar with a Detroit locker I would say that typically a limited slip or torsen differential is superior.

In that car when it was slick, with dedicated snow tires, you would simply spin both tires which would cause you to slide sidewise even due to the crown of the…

Physics is only “broken” here if you have a limited understanding of physics and only use pre-civil war era concepts. (As is typically taught to the general population and engineers unfortunately)

This is simply an issue of the chosen frame of reference with the nieve assumptions. Newton’s laws hold in their simplest…

At least with the current JK’s the main issue is drag. With a 6 speed and 3.73 rears at 55mph I can easily maintain 18MPG (with no wind and flat), but even at 70 Mph this drops off massively. Most of the improvement in the new generation seems to be around better aerodynamics.

On the trail this is going to be more…

1967 Cougar, The first car that I drove after getting my DL (8th I had owned) but in the late 80's I made the following mods.

351c ‘Aussie’ 2V Closed Chamber Ford 351 Cleveland heads, enough compression to run without a coil, 4 speed Muncie M22 (Rock Crusher) and a 4.11s and a Detroit Locker in snow country.

Of course I…

The acceleration is from the frame of the vehicle and not the ground. The important frame of reference is from the perspective of the crash and not ground speed.

Note that once the frame buckles there is a vertical component to movement and a second “impact” if you ignore the crash dummies. This is most visible by…

I was waiting to see what the Diesel option was going to be, mostly for increased range but decided it wasn’t worth the cost for me.

I want the Atlas almost exclusively for the front-wheel drive and 2 low, mostly because I often have to turn around in places not much longer than my length and often with huge drops.

I am…

Just Jeepin’ covered most of what I would have said bnceo.

Until the 3.6 engine came out I never would have bought a wrangler, and the 4 door made it practical. I wanted something that was primarily directed to off-road use that would allow me to bring my better half and the dog along with camping gear. The 2-door…

In 4L mode, when you turn the key it will engage the starter regardless of whether or not the clutch pedal is pressed to the floor.

When you kill the engine in a hairy spot off road you can start it when in 4L without having to press the clutch pedal and avoid the pedal dance and pucker factor.

It is also very useful…

It was just a concept car and not production, the 1967 Chevy “Golden Camao” is the only actual pickup that I can think of that had hidden headlights.

Warning TL;DR

It depends on your use case, I have a 6 speed jku and wouldn’t trade it for the auto for the world. Personally I have never wished that it did have an automatic but this is a personal preference.

If you don’t mind going really really slow hill decent does work on the automatics but it is really really…