Hi Phil, When I got tired of my Richmond 6 speed I replaced it with a TKO-500. The main reason I went with the 500 vs. the 600 was because I wanted the .68 o/d. I felt the .64 was too much and the .82 wasn't enough. So far it's worked well for me, but the only thing I don't like is the 3.27 1st gear, it's over way too quick especially with how quickly my engine revs. On the other hand, the lower 1st gear might be a good thing for a smaller engine, such as your 327. With my .68 o/d, 3.70 rear gear, and 28" tall rear tires, my rpm at 70 mph is roughly 2000. Your combo with the .68 will put you right around 2150 rpm at 70 mph. Hopefully this helps your decision one way or the other. Take care. Herb
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, January 26, 2007 4:33 PM To: [email protected] Subject: [Chevelle-list] Tremec 5 Speed Good afternoon Chevelle List: I am planning to have a Tremec 5 Speed installed in my car this spring. I am requesting any & all thoughts & advice, even if it's just thinking out loud. This is an expensive item and a one shot deal for me so if there is any info or experiences out there I should know about, please don't be shy! Aside from normal installation situations, one item that has been brought to my attention is that there have been problems & difficulty in power shifting at high rpms from 2nd to 3rd. The car is a fair weather weekend driver only, an occassional, OK, more than occassional few gears on the street, with a trip to the drags once or twice a summer. My reflexes aren't what they were 40 years ago & I don't do power shifting anymore anyway. The next item is whether to go with the .64 or .82 5th gear. Would I be giving up all top end punch with the .64 for the sake of really low highway rpms or would the .82 put me whare I want to be & still give it some power if needed. I've done the math on the web calculators but it appears to be a judgement call. 1st gear will be 2.87 and the rear will be a Moser posi 3.73. The car is a 65 SS with a .40 over 327, Muncie M-20 with Hurst, Edelbrock Alum heads & manifold, Demon 750, Comp Cams 274 Extreme, MSD, and Hedman. It currently cruises the highway at 3400 rpm at 65mph with 215x75x15 redline tires. Mostly Show but its got plenty of Go. I'm looking maintain performance & make it highway enjoyable. All thoughts, ideas, and any experiences you're willing to share will be greatly appreciated. Sorry for the long entry. Had to get all my thought down. Thank You All. Phil G. 65 SS ACES/MCC/LGC/VCCA _____ <http://pr.atwola.com/promoclk/1615326657x4311227241x4298082137/aol?redir=ht tp%3A%2F%2Fwww%2Eaol%2Ecom%2Fnewaol> Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.

