Just a thought You were right about the years Mike. The late model 700R4 tranny is a decent one, the earlier units are the ones that have to be rebuilt, trust me on that, i went through that headache with an 86 I had. Doug Nash in particular is out of business because of the remnants of the company being bought up by another driveline company. But it could be done, probably get better gas milage too since its a lighter case with less friction. New to the lineup was a factory crew cab 3+3 dooley, and a four door Suburban 67-72's were three door.
Chevy also did a comercail where the plowed a large feild with a multi bottom field plow mounted on a stock truck with a specail 3 point hitch. Rain gutters are now standard equipment on all models as is the new quick release tailgate for the fleetside models. With the new grill design, the trucks came equipped with: quadruple headlights however, two were still being offered , horizontal side marker lights, new bumpers, and a slightly different tailgate. The 1979 4x4 trucks featured four trim packages starting with Custom Deluxe as the base, then Scottsdale, Cheyenne and ending with Silverado. When operating as a full time case, the internal pump would move oil all over the t-case and keep it well lubricated. He didn't say if he swapped the tranny and T-Case also. Also, full-time four-wheel drive was made available for all V-8 packages.
I leave it in full-time 4x4 since it is very clearly more stable when cornering at speed, and there is little or no difference in fuel economy, just as the manufacturer claims. After having bled the brake system, it is necessary to pump the brake pedal several times until a good amount of resistance is felt on the pedal a firm pedal, not a squishy one in order to extend the cylinders to the operational position. So I am wondering, does this mean there is no way for me to switch to 2wd? Hi, some of you guy's seem to really know you're K-Trucks. I definately like the 203 case though. If you remove the front drive shaft if will act as an open rear end with one tire off the ground.
Turn signals were moved from the bumper to behind the grille. But i'm sticking with full-time 4x4 and that means a 203. No personal information, consider blurring out your tags. Put wheel back on once you have exposed the nut. There are three gear-selector positions, plus neutral.
When in high or low lock, the transfer case differential turns the front and rear axles at the same speed. There was also a new grille design eliminating four of the vertical dividers and one of the horizontal, and an inside hood release was now offered. Also Advanced adapters probably makes an adapter to mate the 203 to the 700r4. I have driven it on a few 2000 mile one way cross counrty trips in the 90's with front drive shaft removed and tcase locked and it is no worse the wear for it and still runs today. You can get a ton more info on these trucks on my website. Do not downvote based upon truck preference and be cordial, we are all here for our love of trucks. You have the old style transfer case, and, full time hubs, all you have to do is put it in 4hi and go.
It was the first time I had tackled this type of job and it took about an hour to complete. When unlocked the front axles and front driveshaft… On the front differental there will be a tube looking thing about 6 inches or so long sticking out of it. The folks who bought the kits were ones who wanted to drive the trucks longer distances and figured that they wouldn't need the 4X4 on the highway. One-ton K30 models were introduced to the line-up, and with them Bonus Cab and Crew Cab models. Fuel prices were rising and that negatively impacted truck sales.
I presently get 13mpg on a good day 12 on a bad with sm465 4 speed and 4. Normally, you have 4 Hi, 4 Hi Loc, N 4 Lo, and 4 Lo Loc. Plowjocky, to answer your question, I am not sure if the 700R4s are computer controlled, im sure the late model ones are, but the earlier one has some wires and stuff inside when you pull the pan down. The 203 weakness in lack of proper maintainance and proper lube. Four-wheel-drive is available in a low range of 1. So if I unlock my hubs will it essentially be the same as 2wd? If you haven't already pulled the old distributor, just turn the engine by hand until the rotor points to 1, then pull the old distributor, point the new one at 1 and slide it in. I know nothing about the 700r4 transmission or its bolt patterns but if rtallday is right and you still want to use the np203, you might want to consider useing the th400 with and after market overdrive unit.
When the truck is in 4wd Hi, and you stomp the gas, the front tires try to spin before the rear tires. It allows the front wheels to turn at a different speed than the rear wheels. Problem arise, as so many people prefer a part time transfer case. . Chevrolet was also the official truck of the Indianapolis 500 in 1978. If you want to test use an ohm meter to see if power is making it into the coil, and then make sure it is flowing form the distributor to the plug. Place the vehicle back on the ground.