View Full Version : tranny gearing quesion?

01-08-2009, 08:18 PM
hey i have a 1977 chev half ton with the 4 speed (i believe its the sm465) and as you all no it has the bull low first gear which makes first mostly useless as i dont do alot of towing so i was wondering if there was a regear kit i could get or something like to make the gearing so its more like a conventional standard thanks for your time

m j
01-08-2009, 10:12 PM
the trucks get stuck with 1940s manual transmission technology until the 6 speeds came out in the 2000+
the nv4500 5 speed they used had the same gearing for the first 4 gears but they stuck an overdrive on the back of it.
that is why so many people want autos in trucks

01-08-2009, 10:33 PM
ya but autos are gay

01-08-2009, 11:07 PM
well the fourth gear is still one to one and the second is the same as a close ration fourspeed first so just use the truck as a three speed. when you need the low gear it is worth its weight in gold.

you could always go with a newer 5 speed or if you have to have a four speed you could get a splitter to effectively make it an 8 speed. lots of options .

01-09-2009, 09:42 PM
put on big enough tires without regearing the diffs and you can use 1st all the time lol