The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Racing and high performance (trucks haulin more than hay)

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-11-2018, 09:47 PM   #26
steven03
Registered User
 
Join Date: Jun 2015
Location: nj
Posts: 30
Re: Longbed driveshafts

Quote:
Originally Posted by cruizin01 View Post
Fit the new 4" steel shaft up this week. It was pretty light, almost seemed like aluminum but wasn't. Im happy with it for $250. They were able to use the stock yoke from the 4l80e and the small'ish 1310 rear joint. Should be fine for my setup. I wont know for a little while till I get it on the road though.
Good to hear! 250 sounds like a good price. 4" shaft fit through the factory cross member okay?
steven03 is offline   Reply With Quote
Old 02-11-2018, 09:57 PM   #27
cruizin01
Senior Member
 
Join Date: Mar 2016
Location: Cbus, Ohio
Posts: 225
Re: Longbed driveshafts

I guess Im not sure which crossmember you're referring to.



dont mind the mufflers. Im replacing the other and have to have my crossover pipe rebuilt.
cruizin01 is offline   Reply With Quote
Old 02-20-2018, 01:28 AM   #28
steven03
Registered User
 
Join Date: Jun 2015
Location: nj
Posts: 30
Re: Longbed driveshafts

Quote:
Originally Posted by cruizin01 View Post
I guess Im not sure which crossmember you're referring to.



dont mind the mufflers. Im replacing the other and have to have my crossover pipe rebuilt.
Didn't realize you were on a different rear suspension, I thought you were on a trailing arm set up like on my 65'. This is the cross member i was referring to ....edit, not my truck just a pic found off google
steven03 is offline   Reply With Quote
Old 10-04-2018, 11:10 AM   #29
71Dragtruck
Registered User
 
71Dragtruck's Avatar
 
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,190
Re: Longbed driveshafts

Well bumping this thread up for the tumble weeds to blow through LOL.

Anyway I'm changing my setup again and will be playing the driveshaft game late in the spring but have already been doing up some research as I knew it was going to be a run around.

New motor will be in the honest 1200hp range N/A, plus will still have my nitrous on it for play if I want, good for up to 200 shot but setting up to run mostly N/A. Going to a SFI case turbo 400 but going to give a long stock tail housing a try to get my driveshaft length down, only downside to that is will have to run a bushing instead of a roller bearing.

I'm thinking that it should run high 8's on motor, going to put in a 4.57 rear gear, and current tires are 32.3" tall, next set will be 33" both listed with a 102" roll out. Motor will spin 8000, if need be, builder figures a guy will be shifting 7800, with convertor slippage and such and a big safety margin I'd say using 7800rpm for critical speed of the driveshaft through the traps should be more than good as doubt I'll ever see close to that unless I drop rear gearing more yet, right now calculating that center to center on the shaft should be ~ 65".

With all that the calls began, all choices and options point to a CF with only one shop claiming a 5" aluminum would work, most CF shaft makers either can't do a 5" or can only handle a 60-61" max tube length. Still waiting on a couple calls/emails back from one place that initially thinks from past projects they could get it done with a 4" CF but are now doing military contracts and won't change tooling for a one off at this point in time, but late spring could be different.

Anyway I look at it unless the 5" aluminum that one place claims would spin 8000 (sounds high to me and the one calculator I found online, do believe it was DOM .125" tubing), will work, I'll be stuck with a custom 5" CF that is rated 8551rpm, with a nice price tag of ~ $2025 plus trans yoke and shipping.


To be continued...…...
__________________
Speed is just a matter of money, question is how fast can you afford to go?
10.18@130.25mph
Sponsered by:
Sandy Ross Well Servicing
Getz Oilfield Consulting Ltd.

Last edited by 71Dragtruck; 10-04-2018 at 11:54 AM.
71Dragtruck is offline   Reply With Quote
Old 10-16-2018, 11:29 AM   #30
'65 chevy lover
Senior Member
 
Join Date: Apr 2011
Location: Ft. Worth, Tx
Posts: 487
Re: Longbed driveshafts

Two piece driveshaft with HD carrier bearing and 1350 ujoints.
'65 chevy lover is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:55 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com