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Old 04-26-2008, 05:05 AM   #1
bigbadchev72
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Join Date: Jun 2007
Location: Hermiston, oregon
Posts: 840
Vibrations!!!!

I have a vibration that is driving me nuts! I am running a 72 blazer 44/60 axles 4.56 gears 350/465/205 8" suspension lift 35x15x16 boggers.

Here is the deal. Ever since I put this thing together it has had a bad vibration from 15miles an hour and below coming to a stop especially, it rattles the whole truck pretty bad. I tore my 84' shortbox apart to build the blazer, I had the same vibes but it was nowhere near this bad, just a little vibration coming to a stop, nothing compared to the blazer.

I chalked all this up to bad driveline angles, I just bought a High angle driveline cv shaft and rotated the axle perches today, the pinion is 1* below the driveline angle to compensate for axle wrap. It helped a little but nothing to what I hoped.

I was at my brothers and was having him pop the clutch to check axlewrap There is a Clunking like metal on metal clunk coming from the bellhousing/transmission. It drives fine though higher rpms and everything, just vibrates coming to a stop.

Just had it apart, the adapter sleeve is in awesome shape, I forgot to mention too that in my shortbox i had a 465/208 setup, I installed that in the blazer but it was to long of a set-up, so i had to get the 465/205 i just un-bolted the bellhousing and slid the new 465 in
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1972 k/5 blazer CST 4X4 Crate 350, th350/205, dana44with trac-loc/14 bolt with detroit locker, 4 wheel discs 4.56s, 8" suspension lift using 73-87springs, 1" zerorate custom front crossmember, HAD CV drivelines and driveshaft e-brake, full cage, PRP seats, Full autometer gauges, 38x14.5x16 Toyo M/Ts, 16x10 Polished aluminum rockcrusher wheels

1967 longbox 4x4, Strong 400/400/208, 44/12bolt 4.10s, 6" lift, 35" Toyo M/Ts on corvette rally wheels
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