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| | | | Joined: Jul 2013 Posts: 55 'Bolter | | 'Bolter Joined: Jul 2013 Posts: 55 | Hello Guys,
I was wondering if anyone could tell me if I can upgrade my rear end to that of a 46 chevy 1/2 ton pickup? I can only go about 45 mph currently so the highway is not an option. My brother has a 46 pickup and he can get up to 55-60 mph on the highway. I'm looking for just a bit of improvement and not trying to go through the pain of open driving with a later model rear end.
Please let me know if what I'm proposing is doable and what steps, challenges, suggestion???
Thanks!
LOS ANGELES, CA
48 FLEETLINE AERO, 50 CANOPY EXPRESS
52 SUBURBAN, 57 BIG WINDOW Pickup, 64 Malibu CV
| | | | | Joined: Sep 2003 Posts: 1,820 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 1,820 | You can do it - it would be a pretty much an "even" swap - same geared rear end - a 4.11 in both trucks - not sure how this will help your truck go any faster. Your engine is a 207, the 46 was a stock 216, could be a 235 or 261 if it was changed out. The engine might give you a little more speed, but basically you are looking a pretty much the same truck from 36 (37 for sure) to 54.
"Truckin' Around .......... Since 1937!" My name is Joe and I am addicted to Classic Country Music. I just can't hep myself.Operators are standing by to take your calls! Now cruising in the Passing Lane | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | If going to that trouble, get a modern rear, S-10, 4wd would work but only 5 lug, or other modern rears.
'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.
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