Join Date: May 2000
Location: Murray, KY
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Re: Possible Info on HD Torsions from Dealer
Here we go J.R. The ZR2 Blazer bars are on the left, part # LWK 15956509 & right RWK 15956510. Here's how I measured the length: I butted the tape against the torsion bar adjuster in the back and measured to the lower A arm & got 47.5" & they are about 1.3/16- 1.25 in diameter. The right one could only be turned about 4 turns to top out and the left, well, I didn't turn it because it had a long way to go before being ran all the way up. I guess the right side of the Blazer is a lot heavier than the left. The only real difference is the Cat converter and exhaust is on the right. The gas tank is centered in the rear and the driveshaft and stuff is on the left. Seems like that would be the heavy side instead. I took a measurement and found I could only get another 3/4- 7/8 lift all the way up. I still had travel and wasn't topped out against the upper A arm though. My measurement with the Tbar ran up as high as it would go was 38.50 to the upper fenderwell opening. Man, ran up like that I can fit a 33x12.50 on a 10" rim without trimming at all. I have done all the calcuations from the rotor. A 9 or 10" rim with a stock 5.5 rear backspacing will only put the front tread out from under the flare about 3/4". I can live with that because the rear will be under all the way. And a 35" is no wider either and that's my goal. I'm probably going with the new MT's from Goodyear. A 35x12.50 is only 34.4 tall on a 10" rim. In magazines they look good, but when you put your hands on one in person, D*** they look good. The tread grooves are as wide as a TSL and will never pick up a rock. Plus the 3.73's will only loose about 200 RPM too. By the way you can get a 33x12.50 for $156.96 & a 35x12.50 for $167.96 from Wal-mart too. I beat Goodyears price by over $30 a tire there. I've been looking for a 34" tire instead of a full 35" tire because people with ZR2's have been putting 33's on their trucks with a little trimming and I knew a 34" 35x12.50 would fit great with the R&R A arm kit and springover. I could get the BFG 35x12.50 at Sears for $149.99 ea though. But that's less than $90 more for a set of 5 for the Goodyears and I think they will be awesome and not what every other truck is running on the road too. I have not read any bad reviews whatsoever about them, they just kick A** all the way.