They know you have deeper pockets more than us mortals. :twitch:
S60 vs 12bolt
- Thread starter AmericanThunder
- Start date
AmericanThunder
Super Moderator
Tug your forelock and get down on one knee when you address me!!!!!! :single finger:
I'm doing some PCB work for a company who has contacts in Florida, and has mentioned about getting any parts I need shipped to them and they will get it to me at a reduced rate.
So I contacted Carl, and see if they can ship to Florida, a possibility of free shipping at the mo too.
Dave, what's you thought's on S-Trac diff? It looks like a Helical type arrangement, similar to the original GM diff the car came with, no special friction modifiers required. I like the look of the design, but I've not made good choices in the past.
Bowing for worthy words by ya master....:hail:
Looking forward to this day again:burnout:burning that rubber...
So I contacted Carl, and see if they can ship to Florida, a possibility of free shipping at the mo too.
Dave, what's you thought's on S-Trac diff? It looks like a Helical type arrangement, similar to the original GM diff the car came with, no special friction modifiers required. I like the look of the design, but I've not made good choices in the past.
Bowing for worthy words by ya master....:hail:
Looking forward to this day again:burnout:burning that rubber...
Last edited:
AmericanThunder
Super Moderator
I don't know what the difference is. I'll happily research it and give you an opinion.
Thanks. 
Wow, nice design with the helical gears
[video=youtube;x0C1eDws6m8]https://www.youtube.com/watch?v=x0C1eDws6m8[/video]
All enclosed unlike the stock GM ones.
Also I like the housing, adjustment to not have to have shims. This looks like top notch stuff. Awesome.
The more I read the more I like.
[video=youtube;x0C1eDws6m8]https://www.youtube.com/watch?v=x0C1eDws6m8[/video]
All enclosed unlike the stock GM ones.
Also I like the housing, adjustment to not have to have shims. This looks like top notch stuff. Awesome.
The more I read the more I like.
AmericanThunder
Super Moderator
Cool. Will look at lunchtime, fighting an intermittent tech issue right now
Hows the battle with intermittent tech?
AmericanThunder
Super Moderator
I found something and have addressed it, but whether its the root cause only time will - its very bizarre!
AmericanThunder
Super Moderator
I'm with you, no clutches, no shims. sounds greats.
As for what your car came with, didn't it have clutches from the factory? - I thought they all did except the Hawk which was an Auburn unit.
As for choice - I suspect the posi would be more streetable and quiet, easier to live with. The s-trac would probably be more harsh and I imagine noisier in operation. As they are the same price, and given your HP level, I would go s-trac.
YMMV
No clutches from factory. I dont have a good photo of it, well I have a photos of me taking the old diff out, but its unclear in the helical gear area, but I do have it in the garage still for some reason, more of a trophy, lol. I certainly remember the helical gears., and the bearing at one end sheared off. opps.
Thanks for your opinion on the S-Trac, I will go that route. I don't mind a bit of extra noise at the rear, I have loads of noise everywhere else.
Thanks for your opinion on the S-Trac, I will go that route. I don't mind a bit of extra noise at the rear, I have loads of noise everywhere else.
My original diff the car came with.
In the car it dosn't look too bad.
humm, opps, that would explain the noise.
In the car it dosn't look too bad.
humm, opps, that would explain the noise.
AmericanThunder
Super Moderator
ouch - that almost looks like something was spinning out of true to cause that?
Side impact on the wheel against something solid probably didn't help, bent the half shaft too. I think other than that the diff would have carried on for many more years to come.
Thread with more detail http://www.solent-renegades.co.uk/readers-rides/2043-almost-trashed-trans-am.html
Thread with more detail http://www.solent-renegades.co.uk/readers-rides/2043-almost-trashed-trans-am.html
AmericanThunder
Super Moderator
Bent half shaft is certainly out of true!
Could have been much worse!
Could have been much worse!
Gear Choice.
The rear end originally was 3.42 gears. I changed to 3.91 at the last diff upgrade. This gave me better acceleration and didn't impact too much on motorway revs/speed, think I done around 1600rpm @ 70mph, cant be sure, I can check data logs. I didn't want to go 4.10's as I heard you are revving higher on the motorway.
Well, The Stange S60 dosn't come with a 3.91 choice or close to. Comment from Carl
So 3.73's are closer to 3.91's than what they are to 3.42's so I still should have better acceleration than stock. This may actually work out better for 0-60mph times, previously(3.42's) 2nd would take me to 70mph(rev limit) the 3.89's take me to about 55mph. So 3.73's should take me to 60 in 2nd.
I think 3.73's will be a good choice, what does any one else think?
The rear end originally was 3.42 gears. I changed to 3.91 at the last diff upgrade. This gave me better acceleration and didn't impact too much on motorway revs/speed, think I done around 1600rpm @ 70mph, cant be sure, I can check data logs. I didn't want to go 4.10's as I heard you are revving higher on the motorway.
Well, The Stange S60 dosn't come with a 3.91 choice or close to. Comment from Carl
So 3.73's are closer to 3.91's than what they are to 3.42's so I still should have better acceleration than stock. This may actually work out better for 0-60mph times, previously(3.42's) 2nd would take me to 70mph(rev limit) the 3.89's take me to about 55mph. So 3.73's should take me to 60 in 2nd.
I think 3.73's will be a good choice, what does any one else think?
AmericanThunder
Super Moderator
The general consensus for the 4th gen f-body is 3.73:1 for the a4 and 4.10:1 for the m6.
I went 3.73:1 with an m6 but only because my carrier was a 2 series. That said I would probably go 3.73 as it made 1st gear quite short in my opinion and with 4.10's you spend virtually no time in 1st making it almost redundant.
I went 3.73:1 with an m6 but only because my carrier was a 2 series. That said I would probably go 3.73 as it made 1st gear quite short in my opinion and with 4.10's you spend virtually no time in 1st making it almost redundant.
Great, thanks. 3.73's it is
AmericanThunder
Super Moderator
And don't worry - the Watts link will fit an S60 too if you get serious about handling!!
Thats good to know. I wonder if its worth getting that shipped with the axle, it cant add much weight to the box. Axle weighing 300lbs, box is 5ftx2ftx2ft including drive shaft.
Looks like someone on Ls1Tech had the watts fitted to an S60, Strange s60 and fays2 watts link - LS1TECH shame there is no pics. I like piccys.
Looks like someone on Ls1Tech had the watts fitted to an S60, Strange s60 and fays2 watts link - LS1TECH shame there is no pics. I like piccys.