Hi, I am having trouble with my Jeep CJ8. I have completely rebuilt everything on the jeep (minus the transfer case). It has been converted from an inline 6 to a V8 AMC 360. The Jeep has an AMC 20 rear (273 gear ratio) and the T176 appears to have tree stump pulling ability. I am about to blow the engine up because it runs way too high (RPMs) in 4th gear. I am tacking at least 4,500 to 5,000 RPMs at 45 - 50 mph. Please help, the tech experts at Quadratec said I should just get bigger tires than 31s and that would cure my problem? Before I drop a ton of money on tires that I really don't need, the Jeep does have a 4.5 inch suspension lift with a 1" body lift, so the tires would actually look better than the small 31s. The experts said I should go with 35s or 38 inch tires and that would take care of the RPM issue. Please, help me out, I am sure many folks have already been thru this, and I could use their knowledge and wisdom. Thanks.
Todd