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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | Ok Grigg lets see you pull this out of your hat. I'm needing the spring shackles and bolts for both front and rear leaf springs (2"). And would you rebuild the original lever type shocks or replace with modern shocks? Thanks. Tim | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Tim, Eaton Detroit Spring should have shackles & bushings & bolts for a 1-ton truck. How do you intend to use your truck - will it be a "working" truck? | | | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | Yes, a working truck.
I'm doing the HO52 rear pumpkin swap and building a 302.
Might stay with the standard 4 speed but need to get everything done and drive it to know. It will be a true hauler-it's a flat bed. I'll use it for everything from hauling lumber to hauling motorcycles. To me it's the perfect size and would probably haul anything you could load-its built so heavy. Thanks for the suggestion. Tim | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | An NP-540 series 5 speed makes a much more useful combination for a work truck.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | Thanks Ed, I'll look into that. I'm hoping to do some fairly high mileage trips out to the NW with this truck and some motorcycles and would like to be in the vicinity of speed limit to keep from [censored] everyone off. | | | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | Ed, this is the same as a T5 correct? Are they stout enough for 1 tons carrying significant loads? I'm wondering since most seem to originate from S-10 trucks. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | No, NP-540 series are truck transmissions, look just like a 435, but with one more gear. Al top cover, 4 shift rails, came in GM, Ford, Dodge, IHC, forklift trucks. Long and short input shafts for 11" and 14" clutches. Rarely come with OD, but, if so, at the expense of larger gap in ratios, OD came from 3rd gear location, hard to go from second to fourth with a load.
Google 'New Process 540 transmission.'
A T-5 probably would not be a good choice for a hard working truck.
Ed
Last edited by EdPruss; 05/13/2016 1:02 PM.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | Thanks for helping clear that up. I'll look around. | | | | | Joined: Jan 2015 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2015 Posts: 48 | I called Eaton Spring and they had all the parts I needed to redo the leaf spring bolts/bushings/shackles. Very friendly and easy to talk to. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Good to hear.
I too used Eaton Detroit Spring but that was almost 15 years ago now. They were quite helpful back then too, had everything I needed. | | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Eaton Detroit Spring is my first choice/contact for any size truck springs and spring-related parts.
If you buy a spring set from them, tell them your want "period correct" spring "binders/clips". | | |
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