88 k2500 silverado
jersin
02-08-2013, 06:07 PM
Dose any one know what the gear ratio is from factory
777stickman
02-08-2013, 10:58 PM
Dose any one know what the gear ratio is from factory
Should be on a placard in the glove box.
Should be on a placard in the glove box.
Schurkey
02-09-2013, 02:22 AM
My '88 K1500 has 3.42s, listed as GU6 on the glovebox decal.
G80 is limited-slip, which would be very welcome but alas is not installed.
I think 3.42 is the standard ratio in K-trucks with a ten-bolt 8.5 ring-gear axle.
3.73 seems to be the standard ratio in K-trucks with the 14-bolt 9.5 ring-gear axle. That's GT4 on the glovebox decal. Again, locking differential is G80.
G80 is limited-slip, which would be very welcome but alas is not installed.
I think 3.42 is the standard ratio in K-trucks with a ten-bolt 8.5 ring-gear axle.
3.73 seems to be the standard ratio in K-trucks with the 14-bolt 9.5 ring-gear axle. That's GT4 on the glovebox decal. Again, locking differential is G80.
jersin
02-09-2013, 06:04 AM
Ok I will take a picture of the place card in the glove box tonight and post it if I can and mine is auto locking hubs I dont have to get out and manually lock them
jersin
02-09-2013, 06:10 AM
Hope this works
jersin
02-09-2013, 06:11 AM
I have for g's GQ1 GU6 and G80
Schurkey
02-09-2013, 12:24 PM
I have for g's GQ1 GU6 and G80
GU6 = 3.42 gears
G80 = Locking rear differential
Locking rear differential has NOTHING to do with locking hubs.
Wish mine were G80; although there's an astounding number of folks who seem to blow-up the 8.5 ring gear locking rear diff. The 9.5 seems to be far superior.
Keep in mind that the vehicle is more than 25 years old, and the parts it was built with could have been replaced three times by now.
GU6 = 3.42 gears
G80 = Locking rear differential
Locking rear differential has NOTHING to do with locking hubs.
Wish mine were G80; although there's an astounding number of folks who seem to blow-up the 8.5 ring gear locking rear diff. The 9.5 seems to be far superior.
Keep in mind that the vehicle is more than 25 years old, and the parts it was built with could have been replaced three times by now.
jersin
02-09-2013, 01:38 PM
True but I dought it my father has only replaced the motor and had the trans rebuilt.... dose any one know where to find out what all the codes in the glove box mean
Schurkey
02-09-2013, 03:13 PM
True but I dought it my father has only replaced the motor and had the trans rebuilt.... dose any one know where to find out what all the codes in the glove box mean
1. Type "GM" and the code into any search engine.
2. Search for a list of GM option codes.
1. Type "GM" and the code into any search engine.
2. Search for a list of GM option codes.
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