[NHRABill]

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Why is this? Is it because of its classic nature or the aerodynamics? The car was not worth much except for some parts when I started. Currently with the work dont with restoration, its worth alot more.

for my own selfish reasons I cringe I love the 71 style much more than a 74 + and they do have good value in comparison good driver 71 will be around 10K you had a nice base 250 model .. they didn't come with 327 that year. just my outdated opinion

I have already checked out the diff and like the previous owner said, it didn't have many miles on it. It looked new inside so i cleaned it up and replaced the seals while I had it apart. So you broke one of these rear ends with only 435 ft-lbs at the wheels?? Now you have me worried. What size tires were you running? Im planing to run a 275-40/17.

I was running street tires first time I popped the rear reached for 3rd and kaboom chug chug chug and stop. tires I used to run on Street early on were 255 /60/ 15 probably goodyear eagles I later settled on a 275 60 15 hoosier quicktime had at least 4 sets of them out back.

I am running a composite spring in the back to lower the weight and hold the weight of the rear battery pack. It will weigh in at about 280lbs which is about 140lbs heavier then the gas tank full of gas

I am running a similar spring but increased weight to 420lbs. per square inch back end of car would slam down when I launched at 3,000rpm I used extra long bots on the ends of the springs to adjust the rear suspension load lighten or loosen its pressure. 7 Gallon fuel cell replaces stock tank with all the safety features.

Here is a link for the rear

http://www.eaton.com/ecm/groups/publ.../ct_128302.pdf

I wish I saw this thread a year ago I would have pointed you to a cheap striong Ford 9" replacement it is a popular swap for these cars in the drag community they last easy to change out center section for new gears and best of all no worries on half shafts breaking. I kept my stock one cause I am cheap and lazy do all work myself and I know how to do it.

NEVER Mess with driveshafts they are the cars weakest point had seen many twist like a soda can and tear at the track even saw one go through the floor I would have one made from a driveshaft shop not that expensive and last forever. Please please invest in this and also make your own driveshaft loop based on the principles of the NHRA required one. A kit from Summitracing.com or Jegs will NOT work the vette tunnel is too small use scrap metal bang bend and make your own it is Cheap wast to make it just holds the driveshaft in place and stops it from Pole vaulting through that fiberglass floor.

Dennys Driveshaft Corvette C2 C3 C4 steel and aluminum driveshafts rear axle half shafts driveline parts slip yoke and pinion yoke for your race car or street rod or restoration project 1953 to 1996 Chevrolet Corvette

I will look into the shatter shield style housing. I do plan to use a less then common clutch in this car. Its a 4.5" 3 stage unit built by quarter master. This will be mounted on a button style flywheel that is neutral balanced. This is mainly for the old M20 transmission as it just does not like to shift without a clutch. So, with the 4.5" clutch, since it never needs to slip, I will basically be installing a switch between the motor and trans. This will also shave a huge amount of rotating mass from the driveline. My plan down the road is to eliminate the weak M20 and bell housing all together and install a power-glide directly bolted to the motor.

I wasn't sure about how your trans would work out Figured you want to light the tires up using a line lock for the front brakes and then cruise in it, not pouinding gears. trans diaper is a lead bag kinda like what you see at a xray office that blocks the bad stuff from you. There are much nicer stuff now then what I had from almost 10 years ago lighter stronger safer and cheaper... just look into it

Please be careful Adam I want to see it complete and you in one piece. Watching people get hurt at the track made me step away for some time. Every time I look at my car I get the itch but have put it off think it will get done this year as a mild cruiser.

here is a picture of my car sitting dormant for way too long I am closing out other projects and then I will get back to work on it.

Good luck