best rear-end gear for TH-700R4/28" tire combo? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

glock35ipsc · 11-05-2008, 12:04 AM

I'm sure that at the rate I have been going Chris, you will have had a set of 3.42's in, an will have thoroughly tested them long before I am actually ready for them!

whatnow123 · 11-05-2008, 12:52 AM

I have a 4.11 and a 700r with 30 inch tires. I can cruise at 75 no problems at all. I'm guessing about 2300 or so (the speedo is off).

If it's for fun (mine is) you can't beat the 4.11's, but if you are going to drive it a lot, probably the 3.73 would work better.

But when the tires hook up, hold on as 1st, 2nd and most of 3rd puts right in the seat. I can bark the tires 2nd to 3rd at 70+ mph.

bugmasta · 06-09-2013, 12:31 PM

Glad I found this thread, looking to swap my 308 for some 373 this week. My motor has plenty of poop to shred the tires out of the hole, but hold onto 3rd gear well over 100 mph as the 308 are just to tall to get a 4th gear shift. Hoping the 373 will allow for all 4 gears to hit under hard acceleration.
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11-05-2008, 12:04 AM	#26
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,684	Re: best rear-end gear for TH-700R4/28" tire combo? I'm sure that at the rate I have been going Chris, you will have had a set of 3.42's in, an will have thoroughly tested them long before I am actually ready for them! __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE

11-05-2008, 12:52 AM	#27
whatnow123 Registered User Join Date: Oct 2006 Location: Arizona Posts: 835	Re: best rear-end gear for TH-700R4/28" tire combo? I have a 4.11 and a 700r with 30 inch tires. I can cruise at 75 no problems at all. I'm guessing about 2300 or so (the speedo is off). If it's for fun (mine is) you can't beat the 4.11's, but if you are going to drive it a lot, probably the 3.73 would work better. But when the tires hook up, hold on as 1st, 2nd and most of 3rd puts right in the seat. I can bark the tires 2nd to 3rd at 70+ mph. __________________ 67 Short Step, 355, 700R 4.11 posi rear, 4/6 drop Discs on all 4 corners. Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=219094 Last edited by whatnow123; 11-05-2008 at 12:58 AM.

06-09-2013, 12:31 PM	#28
bugmasta Registered User Join Date: Aug 2009 Location: North Bend, WA Posts: 272	Re: best rear-end gear for TH-700R4/28" tire combo? Glad I found this thread, looking to swap my 308 for some 373 this week. My motor has plenty of poop to shred the tires out of the hole, but hold onto 3rd gear well over 100 mph as the 308 are just to tall to get a 4th gear shift. Hoping the 373 will allow for all 4 gears to hit under hard acceleration. Posted via Mobile Device __________________ 68 c20 build: http://67-72chevytrucks.com/vboard/s...d.php?t=358130 Club longbed ...cause girls like'em long!!!!!

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