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1975 Chevrolet C60

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2 years 6 months ago #229502 by RedbullC60
Replied by RedbullC60 on topic 1975 Chevrolet C60
Hi Paul, I’ve got a 5 speed in mine as well. Seeing as the clutch has gone I haven’t driven it yet. Are they a synchro box or crash box ?

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2 years 6 months ago #229503 by JOHN.K.
Replied by JOHN.K. on topic 1975 Chevrolet C60
If its a New Process ,it will be similar to a Dodge 5 speed ....and synchro on all but 1&R.......the clutch plate likely 12"x 1 3/8" spline.
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2 years 6 months ago #229507 by PaulFH
Replied by PaulFH on topic 1975 Chevrolet C60
Brochures as mentioned by Overlander.
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2 years 6 months ago #229508 by PaulFH
Replied by PaulFH on topic 1975 Chevrolet C60
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2 years 6 months ago #229509 by PaulFH
Replied by PaulFH on topic 1975 Chevrolet C60
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2 years 6 months ago #229515 by RedbullC60
Replied by RedbullC60 on topic 1975 Chevrolet C60
Gmc look like they were a bit more up speck then the old girl I have. Thanks for the brochure mate. Appreciate it!

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2 years 6 months ago #229525 by PDU
Replied by PDU on topic 1975 Chevrolet C60
Got a road test on one somewhere . . .

. . . will try to find it for you. :unsure:
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2 years 6 months ago #229526 by Lang
Replied by Lang on topic 1975 Chevrolet C60
The American Story

In 1973, Chevrolet presented an updated medium duty range. The trucks received a new tough, injection molded, one-piece plastic grille. The new massive front bumper provides increased surface area and strength. The customer could choose between a new alligator hood design and fiberglass tilt hood design. An alligator-type hood design provides access for routine maintenance, inspection or servicing of the engine or other components completely located in the engine compartment. Entire hood can be quickly removed by sacking out only four bolts. A tilting fiberglass hood of the same design was an extra cost option. The standard glass area has been increased 19% (from 2460 to 2931 square inches). The available full width rear window will more than double rear glass area. The new door frame is fabricated from a single piece of a sheet metal. The front fenders are also received an-all new design. Chevrolet's compact 97.5" BBC allowed big payloads, good weight distribution, and easy of maneuvering. Deluxe two-tone paint with white and a choice of 11 second colors was available as an option. Inside the cabins was the absolutely new exterior. Several engines were available: 250 Six rated at 100 hp, 292 Six at 130 hp, 350 V8 at 160 hp, 366 V8 at 200 hp and 427 V8 at 230 hp. Since 1977, the four cylinder Detroit Diesel 4-53 was available.

Series 50 (Chevy C50) had wheelbases from 125 to 167 inches for a wide range of applications. Standard components included in-line Six or V8 power, depending on model; 4-speed transmission; 5,000-lb. front axle and 11,000-lb. rear axle. GVWs from 13,500 to 18.500 lb.

Series 60 (Chevy C60) had wheelbases from 125 to 218 inches. Engine availability: Six of V8. Standard: 5,000-lb. front axle, 15,000-lb. rear axle with hydraulic brakes, 7000-lb. front, 17,000-lb rear with air. GVWs from 16,000 to 24,000 lbs, GCWs to 45,000 lbs.

Series 65 (Chevy C65) had wheelbases from 125 to 218 inches. Standard specification included V8 power, 4-speed or 5-speed transmission, 7,000-lb. front axle and 17,000-lb rear (except ME65 with 30,000-lb. tandem rear axles). GVW from 21,000 to 40,500 lbs, GCWs to 60,000 lbs. Tandem rear axle models ME65 were available with 149-185 inches wheelbases and still used Hendrickson components.

Series 70 (Chevy C70) was available from the end of 70s with GVW to 33,400 lbs for single rear axle model, and up to 50,000 lbs for tandem.
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2 years 6 months ago #229544 by Mrsmackpaul
Replied by Mrsmackpaul on topic 1975 Chevrolet C60

Hi Paul, I’ve got a 5 speed in mine as well. Seeing as the clutch has gone I haven’t driven it yet. Are they a synchro box or crash box ?

They were a constant mesh box, and yes I would say they were like a Dodge style box

With out looking to much into the grey matter I dont believe it had synchro on reverse, 1st gear was hardly if ever used as I used the trucks in very flat country so I cant really comment on 1st gear

I am 99.9% sure that the paper work from Holden said NewProcess gear boxes

Definitely no over drive

Paul

Your better to die trying than live on your knees begging
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2 years 6 months ago - 2 years 4 months ago #229740 by RedbullC60
Replied by RedbullC60 on topic 1975 Chevrolet C60
What’s your thoughts here guys, both mounts look the same, left and right. No broken bolts ??? Has anyone got a photo so I can see what the clearance between the exhaust and mount should be.
I’m guessing they’ve drooped and the split has spread apart letting the engine drop ??

Last edit: 2 years 4 months ago by Sarge.

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