My 92 truck is a 2wheel drive so why would I buy a 4 wheel drive rotor? The Part number I posted for the 11" 6 lug rotor is almost identical to the 5 lug rotor on the truck now. I think a lot of the those HD rotors are 8 lug and a some are 13".
The newer GTO come with a shifter arm from factory angled 4" to front for better location. I have a GMM shift arm and am going to mate this to T56 shifter to see how it works out.
Last edited by Old Nash; 08-17-2010 at 06:53 PM.
The above was a response to those that are changing to 6-lug. When you go to a 14 bolt rear to get the required strength you end up with 6 lugs. You can have the axles re-drilled or buy new axles with a 5 lug pattern, but the real easy way to go is to use light duty 3/4t rotors up front to match bolt patterns. And then you have a huge variety of rims available, of course.Originally Posted by Old Nash
As for the GTO shifter, if im not mistaken, it sits even farther back then the F-body shifter. And even if it points forward, I doubt it will clear a bench seat. And you will still have to put a longer stick on it. And that will make the throws much longer.
I thought the reason I posted the p/n # for the 5 lug to 6 lug rotor was to buy that rotor and you would have 6 lug all around. I am changing to 14 bolt semi floater and is 6 lug.
I was just making a statement that a GTO shifter has the a 4' forward extending shifter arm from the base like the Mc Leod shifter. I think you need to look at picture of the GTO shifter Yellow Sierra has for sale.and GMM shifter arm. I never intended to use a GTO shifter but "USE" the Tremec T56 shifter and adapt a 4" forward extending shifter arm to it like the Goat. It may not extend shifter far enough forward for the bench seat, but the bucket seats I purchased will solve the problem if it does not.
Last edited by Old Nash; 08-17-2010 at 06:53 PM.
Oh OK, I misunderstood your post on the shifter.
The 90's SS454 trucks had a 5 lug 14 bolt rear end and I would find a rear from one of those trucks if staying with 5 lug. The 14 bolt rear I am using is 6 lug and want same pattern on front. The 6 lug wheel/rims as you said gives more choices and easier to find.
The shifter arm will go froward 4" and then will be bent to resemble the shifters that came in the old 4 speed shifters that came in full size chevy cars from late 50' to 60's. They were bench seats (until buckets seats came out) and the shifter came up over seat if moved all way forward.
What year/model did you use when converting from 5 lug to 6 lug?
I havent yet done this swap, but Ive done a lot of research on it. That and I was a GM parts guy for quite a few years. I was just passing on the info and experience I had collected. If I recall, they changed the rotor thickness sometime around '91, but I believe that the 3/4T LD 6-lug rotors are all the same from 88-98. You will obviously want to verify this by checking whether the in/out bearing is the same for both. And if you are putting the thicker rotor on an earlier model you may have to upgrade your calipers to the post 91 model.
The rotors did change around that time and you are right about checking in/out bearing. You never can get too much info on something before starting project.
Last edited by Old Nash; 08-20-2010 at 10:00 AM.
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