« previous next »
Pages: [1]   Go Down

Author Topic: Driveshaft durability  (Read 2854 times)

Offline Swampyankee74

  • Frequent Member
  • **
  • Posts: 327
  • Keep em alive
Driveshaft durability
« on: February 25, 2023, 09:57:32 am »
I have a 74 c1500 which originally came with a 250 6cl. I now have a 465 horse small block with a m21 tranny.  Is the stock driveshaft going to be able to handle that with occasional abuse? Or turn into a twizzler?
Logged

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2709
  • Old Goof
Re: Driveshaft durability
« Reply #1 on: February 25, 2023, 09:01:18 pm »
LOL Red twizzler

Pry a bd question.
Logged
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19151
Re: Driveshaft durability
« Reply #2 on: February 26, 2023, 06:07:35 am »
Didn't you say you were lowering it? If so what method did you use to lower the rear? Check your operating angles, make sure appropriate clearance, slip and good u-joints. Download the angle meter app on your phone.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Swampyankee74

  • Frequent Member
  • **
  • Posts: 327
  • Keep em alive
Re: Driveshaft durability
« Reply #3 on: February 26, 2023, 07:55:03 am »
I did lower it 4 inches in the back by spring hanger and shackle method. I'll make sure all clearances, and that the slip yoke isnot to far into the tranny, and new u joints. Just checking to see if that old tube could take the beating.
Logged
Pages: [1]   Go Up
« previous next »