|10-03-2012 09:31 PM|
|db flyer||thanks for your reply, I put on 235/75r15 tires, and will be seeing what that does to my gear ratio. Cobalt sent me a calculator site, and it seems like according to the calculator I will be running around a 3.07 rear ratio.|
|10-03-2012 03:15 PM|
I can conform that Chevrolet had that ratio in 1956. I was a GM Tech and all I recall were 3:55 and up to 4:11 with a special order 4"56 ratio. In '58 I stared seeing a few 3:42's and then in '60 a few 3:08's. I'm using 3:08's right now in a T-5 setup behind a really warmed up 216 inline six and am happy with the outcome. I use a 30" high tire.
|09-27-2012 06:48 PM|
|09-27-2012 04:33 PM|
|vinniekq2||215/70s are about 27 1/2 tall 235 are over 29,so I bet you will notice,,Note your speedo will not show the new faster speed that you will be going|
|09-27-2012 04:06 PM|
|db flyer||I`m going to try taller tires and see what that does. I have 215.70r15 on and will try 235.75r15 . Wonder what gear ratio change that would be eqivelent to from my 3.36 rear gears .|
|09-27-2012 03:45 PM|
Have you considered taller tires? or at least borrow a set to see if the gear change makes you happy.Back when I was driving with 5.13s I swapped out L-60-15s for L-78_15s,so I could drive from Vancouver BC,to race at Bremerton.
wish I had overdrive,,,it was a long hall at 3700 rpm
|09-27-2012 02:42 PM|
Thanks for the info on 55-64 full size 3rd member fitting in my 56 housing.
Do you have an idea of the highest gear ratio that may be avail? Thanks
|09-27-2012 01:40 PM|
|big gear head||Any '55 to '64 full size Chevy or '55 to '62 Corvette chunk will fit in your housing. The '62 to '64 Chevy II had a smaller differential.|
|09-27-2012 01:21 PM|
|db flyer||Ya, not much diff. with only 120 rpm lower|
|09-27-2012 01:12 PM|
|09-27-2012 12:57 PM|
stock Chevy 1956 rearend gears
I have a stock 56 chev. with th350 trans. and 3.36 gears in rearend. I want to
go with a higher ratio. I have heard that a 3.23 or 3.08 3rd member would fit in my stock rearend housing? Any thoughts or suggestions if these would fit, and where to start looking for one. Craigslist?