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Old 04-11-2007, 10:55 PM   #1
fourty1
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Join Date: Dec 2006
Location: washington state
Posts: 144
Ring & Pinion issues-8 lug - 3/4 ton

I'm looking for suggestions or comments.. Thanks..
The story: Purchased a 67 3/4 ton, th400, coils all the way around, Eaton rear, 32" commercial truck tires on 16 " rims, Drum brakes- 8 lug,,,
Truck was carrying an Alaskan POPup camper ( approx 1600lbs ). i had wanted to ditch the tall tires to rid myself of the tire 'whine' on the freeway.....

I sold the camper to pay for a disc brake/ power booster set up, Then added drop spindles & coils. Found a great set 8 lug- 17" Weld Conehead wheels, added a set of Continental radials- only the tires are 28" tall.

Now it's hard to go over 50 mph, that ole 350 is really spinning and loud , too , Geared too high.

Question - did years/ models did GM offer other diff. that were 8-lug but better gearing, I must have 4:10 gears.

the truck just looks fast , & the mileage went south...
any help or suggestions please..
Thanks, jim
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1941 Chevy 1/2 ton Street Rod: 327 cu,/350 auto, 'Stinger ' - JULY 2007 CUSTOM CLASSIC TRUCK magazine.

1967 Chevy 3/4 ton standard bed, 350 cu./400 auto,
w/ 83 - 3:43 rear end...sips gas....

Last edited by fourty1; 04-12-2007 at 03:11 PM. Reason: mis-spelled title
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