What have you done with your trucks today

['68OrangeSunshine]

Originally Posted by hatzie

Barn Gremlins got them or they're hiding from you.

Get another one. The original will get jealous and show up. It's called tool Envy

No the Gremlins just put them in my briefcase, instead of the electrical tool bag. Sneaky Devils. Turned out my friend's Subaru had blown bulbs, like I suggested. He wouldn't let me pull a continuity check on his headlamps. Insisted they were new. Maybe they were, but still burned out. So he had the Dealer replace them. Hopefully under warranty.

Anyway, Today, I tooh the '03 'Hoe in to Discount Tire. The truck has a nasty shimmy/shudder above 60 MPH. I figured a balance and rotation would either eliminate that gripe or pinpoint it. Without moving it, the Tire Tech, showed me there was irregular wear on the Left Front, probably from bad alignment. That tire rated at 4 of 10. The other three were 6s. While rotating that tire to the rear, and getting an alignment at another shop would have been the No or Low Buck solution, I remembered I have a set of Cooper 235/75/R16 tires just sitting in the sunshine and gathering spiderwebs.

A couple of years ago, when gas was up to $5 a gallon, I decided to remove the 33x12.50x15 Falken meats from the GMC Jimmy, my only runner at the time. An old friend had taken off a set of aluminum rims from his new-to-him '99 Suburban. He thought they were too ''bling-ey''. He gave them to me. I got 2 pair of 2'' aluminum spacers and had them mounted on the Jimmy. They ran fine. My speedo was true, according to the GPS, They handled very well in city traffic.
But one rainy day I was on the freeway to see an old college buddy, some 60 miles way, and weird vibrations at speed scared me. I got towed home. First I pulled the aluminum rims and put the old 33x12.50x15s back on. Bad vibes continued. I put the GMC up on jackstands, and rotated the propshafts. My Transfer Case had accidently slipped into 4 HI. I put it in 2 WD and it was better. But a U-Joint was AFU. When I was under to R&R it, I saw the Carden/Lloyd constant speed assembly on the Front Prop Shaft was FUBAR. So my 4WD Jimmy is currently a 2WD. A new Front Prop Shaft runs $500. I ogled the Front Prop Shaft still on my dormant '67 K/10 Suburban, looks near identical, but if I extract any more parts from old White Fang, she'll never rise again.
The result was I parked 4 good, expensive tires behind the Suburban for a couple years.
Tonight, I loaded them on the back of the '68 C/10 Stepside. Tomorrow, I'll drop them off at Discount Tires and they can mount them on the 'Hoe.
The rims should fit fine, since a '99 Suburban is the same platform as the 2003 Tahoe.
I measured the current tires on the 'Hoe: they were 29.5'' high. TAhey are 265/70/R17s. The diameter on the Cooper 235/75/R16s is about 29'' but it's hard to read when not mounted on a vehicle. [Coincidentally, the height of the 33x12.50x15s is also 29-1/2''.]
If the diameter is radically different, will I have to get anything reprogrammed?