700r4 - is it OK to drive hwy and town in D?

[tuner-automotive]

I know this is stupid Q, but it should be Ok to drive around town and HWY in drive instead of OD , correct.?

 

[Thunder]

I usually drive in town in D. But most always use OD on the highway as long as RPMs are 1800 or over. I have no problems and still have the orginal 700R4 in my K5.

 

[ryoken]

ditto

 

[firefighter184]

What size tires and what gearing are you running? I have 33's and 3.73 gears, and I use drive 80% of the time. The only time I use OD is when I'm on flat open highway.

 

[pauly383]

Depends on gearing and useage . I have an 83 so I have no D and OD position , I have simply P-R-N-D-3-2-1 .

I stayed out of D and used 3 with the 3.08's and 33's . Since my axle swap to ONLY 3.73's , I always use just D ( overdrive ) . I only use 3rd now for towing or really steep grades .

And wheeling , never use any OD at all .

 

[ryoken]

32's and 3.73's.. i only run OD out on the highway from about 60, 65 and up...

 

[Zeitler]

...as long as RPMs are 1800 or over....

is this because the tc only locks at 1800 or above?

i have 32"s & 2.73's i don't think the tc ever locks ... (can't use OD at all)

but 4.56's is on the way

 

[shane74]

I have 3.08's and 33's in my '87 burb. I only use OD if I am on flat, open, long stretches of highway and my speeds are above 75 mph. Anything under that and it sux. I am always in D around town. Even in our buick, we don't use OD unless we are at 60+ mph on the freeways.

 

[jekbrown]

turn your stereo down and listen to the engine... if its racing like mad, put it in OD... otherwise, D is fine.

j

 

[paveslave]

The rule I go by is if it can't decide whether it wants to be in 3rd or OD leave it in 3rd.

Pat

 

[fireplug]

Let's put it this way. Never use OD in the city.

 

[Pookster]

my truck doesnt shift into OD until after around 40mph. I will keep it in OD for most driving anyways, if its city, it never reaches those higher speeds to even engage OD. If doing local but fast stop and go, I'll keep it out of OD. Otherwise, long stretches of highway, OD it is.