rc18r please help
11-21-2011, 05:14 PM
#1
rc18r please help
rc18r brand new......maybe tenpacks through.....diffs started buzzing like helicopter......any suggestions.....already disassembled and found no pebbles or anything of the like.........love the car....hate the new noise
11-22-2011, 04:59 AM
#2
any ideas
any ideas......diffs shot? should i replace with GPM aluminum and Delrin diff from the toyz?
11-22-2011, 05:31 AM
#3
diff
The diffs are known to go up in the rallys. I would get the rebuild and also check the Gear on the drive shaft. Sometimes that goes out. 
11-22-2011, 09:02 AM
#4
Tech Regular
diffs
efarrell....
You may also want or need to add a shim or two so the gears have good side to side, smooth mesh, but not too tight. I found that the tolerances (even a new kit) can be a little off and with that said, sometimes there is a little too much side to side play, resulting in a slightly loose mesh condition. Even though it's not mentioned in the kit's directions, or really not needed, I like to put a very small amount of Assoc. diff lube on the diff gears. Just enough to make them a little smoother sounding. Just one of my little pet peaves. There is no need to purchase any after market hop-ups for your diffs...... the stock Assoc. diffs are very well made and work real well. Hope this helps you out.
You may also want or need to add a shim or two so the gears have good side to side, smooth mesh, but not too tight. I found that the tolerances (even a new kit) can be a little off and with that said, sometimes there is a little too much side to side play, resulting in a slightly loose mesh condition. Even though it's not mentioned in the kit's directions, or really not needed, I like to put a very small amount of Assoc. diff lube on the diff gears. Just enough to make them a little smoother sounding. Just one of my little pet peaves. There is no need to purchase any after market hop-ups for your diffs...... the stock Assoc. diffs are very well made and work real well. Hope this helps you out.
11-22-2011, 09:11 AM
#5
thanks and quick question
efarrell....
You may also want or need to add a shim or two so the gears have good side to side, smooth mesh, but not too tight. I found that the tolerances (even a new kit) can be a little off and with that said, sometimes there is a little too much side to side play, resulting in a slightly loose mesh condition. Even though it's not mentioned in the kit's directions, or really not needed, I like to put a very small amount of Assoc. diff lube on the diff gears. Just enough to make them a little smoother sounding. Just one of my little pet peaves. There is no need to purchase any after market hop-ups for your diffs...... the stock Assoc. diffs are very well made and work real well. Hope this helps you out.
You may also want or need to add a shim or two so the gears have good side to side, smooth mesh, but not too tight. I found that the tolerances (even a new kit) can be a little off and with that said, sometimes there is a little too much side to side play, resulting in a slightly loose mesh condition. Even though it's not mentioned in the kit's directions, or really not needed, I like to put a very small amount of Assoc. diff lube on the diff gears. Just enough to make them a little smoother sounding. Just one of my little pet peaves. There is no need to purchase any after market hop-ups for your diffs...... the stock Assoc. diffs are very well made and work real well. Hope this helps you out.
do you have part number for the shims
11-22-2011, 02:01 PM
#6
Are ya sure it's the diffs and not a good bit o gunk stuffed up in your spur?
11-22-2011, 04:51 PM
#7
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