Driveline recommendations?

[MAGONSTERZ68]

Have been told a 3" od 830 wall steel driveline will do just fine.
Have also been told a 3.5" od aluminum driveline is recommended vs any steel application.
trying to keep it under 1000 ttl, so that removes a 3.25" od carbon fiber jobber.
1350 yokes front and back with a ttl length of 48-7/8"

388 cu 2.9 whipple, 4000 lb Camaro 4l80 trans, any recommendations?
shooting for 750hp 600tq 6400 rpm max

update, just measured 46 5/8' center to center of u joint with yoke completely bottomed in trans tail housing.
lunch time visit to local speed shop quoted me 700 for 3.5 alum set up including u joints and 1350 yokes.

[MAGONSTERZ68]

just realized admin should relocate post to general drive train section, sry, thx

[Pro Touring Store]

I'd go with a 3.25 to 3.5" steel. Aluminum you'd want a 4" if you want the comparable strength.

Strange makes chromoly, check into them.

Or PST in Florida

-Dale

[MAGONSTERZ68]

I'd go with a 3.25 to 3.5" steel. Aluminum you'd want a 4" if you want the comparable strength.

Strange makes chromoly, check into them.

Or PST in Florida

-Dale

much appreciated checked into it, Strange wasn't bad but PST was better with the smaller od ,using a higher DOM grade steel, needed for 68 f body tunnel clearance of tight tuck exhaust plus more economically priced.

3 1/2" Seamless Chrome Moly Driveshaft With Forged 1350 Weld Ends & Solid U-joints × 1
32 Spline - TH400 / 4L80E
U1664 Chrome Moly Yoke ($185.00)
1350 Series U-Joint
Maximum Engine RPM ?:7,000
SFI Certified ?:No
Option Total:$205.00
UPS Ground: $53.99
Total $807.99

VS

3'' Steel Driveshaft - Up to 950 HP - .083'' Wall with 1020 DOM Steel
Dimension X (Seal-to-Center):48.875
Rear U-Joint Size1350
Max RPM:7000
Max Horsepower:750
Transmission Type:4L80
Upgrades & Add-ons ($35.00):
Spicer U-joint upgrade (pair)
$494.00



Shipping Flat rate: $85.00
Total $579.00

[Hotwire]

Use this calculator, plug in your tire size, rear gear, and set one of the trans gears to 1.

https://www.blocklayer.com/rpm-gear

Then scroll to the bottom, looking at the gear set to 1, and you will see your driveshaft RPM to the highest speed you want to go. That'll let you know if you'll stay below your critical driveshaft RPM. I ran into this problem with stupid long A-body shafts, just about looped one with short 25" tires and 3.73s..

[MAGONSTERZ68]

Use this calculator, plug in your tire size, rear gear, and set one of the trans gears to 1.

https://www.blocklayer.com/rpm-gear

Then scroll to the bottom, looking at the gear set to 1, and you will see your driveshaft RPM to the highest speed you want to go. That'll let you know if you'll stay below your critical driveshaft RPM. I ran into this problem with stupid long A-body shafts, just about looped one with short 25" tires and 3.73s..

Tried it but not sure what im looking for can you assist with image below?
Strange has a handy chart, see below.

[Hotwire]

What rear gear and rear tire size are you running?

[MAGONSTERZ68]

3.73 rp
275 40 18 26.7" rw diameter

[Hotwire]

Look at line 4 (4th gear set to 1), at 11 mph it's spinning 500 rpm, 21mph 1000 rpm, etc. Think you'll be safe if you don't have plans to exceed 150mph.

[MAGONSTERZ68]

I See said the blind man, got it, much appreciated