Author Topic: Rear gears (Read 9728 times)

Ds2014 · « **on:** October 14, 2014, 08:16:16 pm »

I have the stock rear in my 81 step side. I have a 10.5:1 small block 408. How deep should I go with the turbo 350? I was thinking 3.42?

rich weyand · « **Reply #1 on:** October 14, 2014, 08:22:19 pm »

What tire are you running?

pratherjoe · « **Reply #2 on:** October 14, 2014, 11:24:41 pm »

http://www.competitiondiesel.com/Phil/bg/

This chart will show rpm's vs mph

Sent from my iPhone using Tapatalk

zieg85 · « **Reply #3 on:** October 14, 2014, 11:37:00 pm »

Stall speed or stock converter, cam rpm range and type of driving are all considerations for your choice.

Ds2014 · « **Reply #4 on:** October 15, 2014, 11:24:48 am »

Street driven 2800 stall 292/292 cam

Ds2014 · « **Reply #5 on:** October 15, 2014, 12:45:23 pm »

Right now I have 31 10.50

zieg85 · « **Reply #6 on:** October 15, 2014, 12:59:26 pm »

Around town or highway? What gears do you currently have? How does the truck perform now?

rich weyand · « **Reply #7 on:** October 15, 2014, 01:39:47 pm »

I wouldn't go to 3.42 with 31" tires. That 3.73 on there is like a 3.49:1 with those tires. A 3.42 would be like a 3.2:1.

Ds2014 · « **Reply #8 on:** October 15, 2014, 07:00:42 pm »

Right now I can do a burn out at 45 mph

Ds2014 · « **Reply #9 on:** October 15, 2014, 07:01:59 pm »

I am getting 17" rims and a 28 inch tire

Ds2014 · « **Reply #10 on:** October 15, 2014, 07:03:25 pm »

I have 2.73

zieg85 · « **Reply #11 on:** October 15, 2014, 07:23:21 pm »

If it were me I'd leave well enough alone then

Ds2014 · « **Reply #12 on:** October 15, 2014, 07:58:17 pm »

No posi tho. I thought about just putting a posi and leaving stock or going with 3.08

zieg85 · « **Reply #13 on:** October 15, 2014, 08:03:16 pm »

I mis-read, with 2.73 I would jump up to a 3.42. When I replied earlier I thought it said 3.73. A bump to 3.08 would barely be noticeable.

zieg85 · « **Reply #14 on:** October 15, 2014, 08:06:28 pm »

Limited slip of some sort is always a good thing, just make sure you know what it will do and get use to it. I've had more than my share my back end passing me, luckily it was on the track and nothing happened except a little embarrassment.

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Author Topic: Rear gears (Read 9728 times)

Ds2014

Rear gears

rich weyand

Re: Rear gears

pratherjoe

Re: Rear gears

zieg85

Re: Rear gears

Ds2014

Re: Rear gears

Ds2014

Re: Rear gears

zieg85

Re: Rear gears

rich weyand

Re: Rear gears

Ds2014

Re: Rear gears

Ds2014

Re: Rear gears

Ds2014

Re: Rear gears

zieg85

Re: Rear gears

Ds2014

Re: Rear gears

zieg85

Re: Rear gears

zieg85

Re: Rear gears