1-2 shift chirp, Tire update, Polishing, & Diff. fluid - The 1947 - Present Chevrolet & GMC Truck Message Board Network

apstguy · 06-04-2003, 08:11 PM

I have found out that with these skinny tires from the Tahoe, if I am turning and give it a little gas, the 1st-2nd shift will chirp. With a 305? What gives?

It's really cool, but a 305? No muffler did give it horsepower!

Hehe...

Anyways, I did get my one tire that poped - ended up being $87. I still have the junk tires on (making me squeak everywhere and peel out when there is paint from a crosswalk)

I am polishing my rims, but only have 2 done. They took me 2 hours each doing a half ass job! Is there an easier way to do this? I'm using Nevr-Dull w/ the cotton or whatever it is that comes in a can. Works well, but takes forever and alot of it! I can't get the holes clean. Any suggestions?

I'm changing the differential fluid out this weekend. I don't think it ever has been changed, so It may have solidified a little (I've seen it before!) I'm a little afraid. I'm going to use 80W-90. The right stuff? I think the bottle I got was partially synthetic. Any positives & negatives associated with it?

ocbaud · 06-04-2003, 08:17 PM

you gotta run dino oil in the rear if you gots a positrac, i'm not sure about the stock ones, but on eatons and auburns you cant run synthetic

sbc350gearhead · 06-04-2003, 08:46 PM

I have never heard that about synthetics with a posi. I am not disputing it, just never never heard it before. I have an eaton posi and I run Lakewood BFL fluid and it seems to work pretty good, although it is expensive. Most racers I talk to swear by it though.

**swervin ervin** · 06-04-2003, 08:51 PM

I use Lakewood BFL with my Auburn. I'm not sure on the synthetic, but if you use regular oil, you need to use some additive with a posi.

apstguy · 06-04-2003, 09:47 PM

I don't have a posi so I don't think that will be a problem. It is some "premium" Valvoline stuff. Only 80W-90 they had - they were out of the cheap stuff. Better for it I hope!

BTW: How much do the 10 bolts use? I bought 2 quarts. Will that be enough?

**swervin ervin** · 06-04-2003, 09:59 PM

No, it takes about 2-2/3 quarts. Fill it until the oil starts to run out the fill hole.

06-04-2003, 08:11 PM	#1
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,087	1-2 shift chirp, Tire update, Polishing, & Diff. fluid I have found out that with these skinny tires from the Tahoe, if I am turning and give it a little gas, the 1st-2nd shift will chirp. With a 305? What gives? It's really cool, but a 305? No muffler did give it horsepower! Hehe... Anyways, I did get my one tire that poped - ended up being $87. I still have the junk tires on (making me squeak everywhere and peel out when there is paint from a crosswalk) I am polishing my rims, but only have 2 done. They took me 2 hours each doing a half ass job! Is there an easier way to do this? I'm using Nevr-Dull w/ the cotton or whatever it is that comes in a can. Works well, but takes forever and alot of it! I can't get the holes clean. Any suggestions? I'm changing the differential fluid out this weekend. I don't think it ever has been changed, so It may have solidified a little (I've seen it before!) I'm a little afraid. I'm going to use 80W-90. The right stuff? I think the bottle I got was partially synthetic. Any positives & negatives associated with it? __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32 Last edited by apstguy; 06-04-2003 at 08:14 PM.

06-04-2003, 08:51 PM	#4
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	I use Lakewood BFL with my Auburn. I'm not sure on the synthetic, but if you use regular oil, you need to use some additive with a posi. __________________ Mike 1985 Chevy C-10

06-04-2003, 09:47 PM	#5
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,087	I don't have a posi so I don't think that will be a problem. It is some "premium" Valvoline stuff. Only 80W-90 they had - they were out of the cheap stuff. Better for it I hope! BTW: How much do the 10 bolts use? I bought 2 quarts. Will that be enough? __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

06-04-2003, 09:59 PM	#6
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	No, it takes about 2-2/3 quarts. Fill it until the oil starts to run out the fill hole. __________________ Mike 1985 Chevy C-10

06-04-2003, 08:17 PM	#2
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	you gotta run dino oil in the rear if you gots a positrac, i'm not sure about the stock ones, but on eatons and auburns you cant run synthetic

06-04-2003, 08:46 PM	#3
sbc350gearhead Registered User Join Date: Mar 2003 Location: Columbus Ohio Posts: 1,413	I have never heard that about synthetics with a posi. I am not disputing it, just never never heard it before. I have an eaton posi and I run Lakewood BFL fluid and it seems to work pretty good, although it is expensive. Most racers I talk to swear by it though.



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