View Poll Results: Which rear for my car?
Voters: 50. You may not vote on this poll
12 bolt rear
There is a bunch of supposed ways to check the pinion angle, the way my fab guy checks it is he has a digital guage, puts it on the rear and sero's it out on the rear tehn checks the driveshaft side to see what the difference is, some people check it compared to level ground.
Ask Madman, he probably can explain it better. I know my car is set at -2, my fab guy set it for me, and I went home and checked it vs the driveshaft with the frame connectors level and wrote it all down, I know when all the #'s are the same as what I have written down, the angle is -2. I'll be honest I have clunks but that's from rod ended rear control arms and the phb. I didn't see/notice any increase in the clunks when I put this on the car, I had a chassis mounted spohn before and that didn't clunk either. I bet the ang;e beign off has something to do with the whine
As for the whine, live with it is all I can say. You get one that doesn't whine, and I guarintee it's gonna break, that is how it always seems to be.
Ask Madman, he probably can explain it better. I know my car is set at -2, my fab guy set it for me, and I went home and checked it vs the driveshaft with the frame connectors level and wrote it all down, I know when all the #'s are the same as what I have written down, the angle is -2. I'll be honest I have clunks but that's from rod ended rear control arms and the phb. I didn't see/notice any increase in the clunks when I put this on the car, I had a chassis mounted spohn before and that didn't clunk either. I bet the ang;e beign off has something to do with the whine
As for the whine, live with it is all I can say. You get one that doesn't whine, and I guarintee it's gonna break, that is how it always seems to be.
Krazy: I'll know better when Don retunes my ratio as it effects my shifts points and all that other stuff. I think I will like it around town on the Hwy it's just a little high around 70 but not too bad. No way would I run those gears in an A3 on the hwy w/ 26" tires. It spins pretty high and would be very loud. I think 3.73's would have been perfect for my intentions, but that is pretty much nitpicking.
I'm still babying it for break-in, but you can tell it moves out a bit faster.
My exhaust gets a loud resonating sound around 2400 rpms, these gears pretty much put me there cruising in either 3 or 4, so it's a bit louder. The car is just a weekend crusier and something to play with at the track on occasion so I don't mind going little bigger than what most would tolerate on a daily driver.
JL: Thanks for the info, I'm gonna play with it a bit and see how it works out, Once I get my driveshaft loop back I'll double check all the things talked about. I also got relocation brackets in the mail as we speak. ( my car fund is tapped this year
)
I'm still babying it for break-in, but you can tell it moves out a bit faster.
My exhaust gets a loud resonating sound around 2400 rpms, these gears pretty much put me there cruising in either 3 or 4, so it's a bit louder. The car is just a weekend crusier and something to play with at the track on occasion so I don't mind going little bigger than what most would tolerate on a daily driver.
JL: Thanks for the info, I'm gonna play with it a bit and see how it works out, Once I get my driveshaft loop back I'll double check all the things talked about. I also got relocation brackets in the mail as we speak. ( my car fund is tapped this year
) Last edited by DannoWS6; May 30, 2008 at 09:20 AM.
I have a Strange 12-bolt...
I vote for a 3rd option. Strange S60. Its a Dana 60 made for F-bodies. Stronger and lighter then 9" only 17lbs heavier then a 12-bolt with the same options. I spent a lot of time on the phone with Strange asking about the S60 after I broke the gears in my 12-bolt for the 5th time in as many years.
If you plan on launching at upwards of 7000rpm with a good clutch, I would go with the S60 from Strange.
I vote for a 3rd option. Strange S60. Its a Dana 60 made for F-bodies. Stronger and lighter then 9" only 17lbs heavier then a 12-bolt with the same options. I spent a lot of time on the phone with Strange asking about the S60 after I broke the gears in my 12-bolt for the 5th time in as many years.
If you plan on launching at upwards of 7000rpm with a good clutch, I would go with the S60 from Strange.
I have a Strange 12-bolt...
I vote for a 3rd option. Strange S60. Its a Dana 60 made for F-bodies. Stronger and lighter then 9" only 17lbs heavier then a 12-bolt with the same options. I spent a lot of time on the phone with Strange asking about the S60 after I broke the gears in my 12-bolt for the 5th time in as many years.
If you plan on launching at upwards of 7000rpm with a good clutch, I would go with the S60 from Strange.
I vote for a 3rd option. Strange S60. Its a Dana 60 made for F-bodies. Stronger and lighter then 9" only 17lbs heavier then a 12-bolt with the same options. I spent a lot of time on the phone with Strange asking about the S60 after I broke the gears in my 12-bolt for the 5th time in as many years.
If you plan on launching at upwards of 7000rpm with a good clutch, I would go with the S60 from Strange.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Never Done 
Although it has to be more or less for me soon, I need a house.
I know I've easily spent 20K+ into the car not including the cost of buying it, which was even more. I bought the car in late 2001, and I payed it off this past winter, LOL I could have paid it off like 3+ years ago, oh well.
I get a kick outta people when they say they are gonna toss 5-6 grand into their car and it's gonna run 10's.
Although it has to be more or less for me soon, I need a house.
I know I've easily spent 20K+ into the car not including the cost of buying it, which was even more. I bought the car in late 2001, and I payed it off this past winter, LOL I could have paid it off like 3+ years ago, oh well.
I get a kick outta people when they say they are gonna toss 5-6 grand into their car and it's gonna run 10's.
It's always sounds easy to say. I have no doubt that what you're putting together will do that with a little work, it's not gonna do it right off the trailer the first pass but once you have it sorted out, you'll probably have it closer to 10.0 then 10.5.
I get a kick outta people when they say they are gonna toss 5-6 grand into their car and it's gonna run 10's.[/QUOTE]
I got about 3k into a 5k car and am only a 100 shot away from 10s. The question becomes how many times do you want to run those 10s. No question it cost money to do it reliably. FAST , RELIABLE, CHEAP -- PICK 2.
I got about 3k into a 5k car and am only a 100 shot away from 10s. The question becomes how many times do you want to run those 10s. No question it cost money to do it reliably. FAST , RELIABLE, CHEAP -- PICK 2.
Yeah I mean reliably, not 1 or 2 passes. I guess what I mean is a car that runs em' consistently. It takes a lot more $ than people anticipate, that's for sure.
Still getting used to the ratio (3.73's woulda been plenty), It's a bit high for hwy cruising and I've noticed the gears are catching up with the stall speed really quick (I need a new one anyways). I got enough breakin' miles on it atleast. I've been playin' around with the pinion angle and it's helping a little. The angle was so negative before the nose wouldn't dive at all while braking. I've loosened it up a little now it dips a little and some of the vibration is gone. I gotta few more things I'm gonna try.
Unpainted
Painted
Unpainted
Painted
Time for some slicks.... thing of beauty right there. Least you know youll be driving home frome the track. I just wasted a friday night putting in another 10 bolt on jack stands knowing the whole time I will be here again. OTOH working on car in garage drinking beer with buds > sitting on couch with wife watching some stupid movie.
