Differential questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RicksTrucks · 08-25-2005, 12:41 AM

I need to find out what ratios my trucks are. Several have said to take the cover off and count. And change the oil while you are at it. So:

1. If I just take the cover off, will enough of the old drain out or do I need to raise the front-end some? Or pump it out?

2. I know I will need to put on a new gasket. Do these need gasket stuff and if so, what type? High heat?

3. Any particular brand of oil best. Saw some at O'reilys, but don't remember the brand - may have been their own.

4. Any thing else I should do while I have it open?

I know there are several FAQs about how to determine ratio and I will find those.

08-25-2005, 12:41 AM	#1
RicksTrucks Senior Member Join Date: Jan 2005 Location: Claremore, OK 74017 Posts: 2,640	Differential questions I need to find out what ratios my trucks are. Several have said to take the cover off and count. And change the oil while you are at it. So: 1. If I just take the cover off, will enough of the old drain out or do I need to raise the front-end some? Or pump it out? 2. I know I will need to put on a new gasket. Do these need gasket stuff and if so, what type? High heat? 3. Any particular brand of oil best. Saw some at O'reilys, but don't remember the brand - may have been their own. 4. Any thing else I should do while I have it open? I know there are several FAQs about how to determine ratio and I will find those. __________________ 68 Short Stepside C-10 69 SWB C-10 70 Flatbed C-20 70 LWB C-20 BB402 70 LWB C-10 CST 70 LWB C-10 CST 71 Short Stepside Cheyenne C-10 72 LWB C-10 72 Blazer 4x4 4spd 95 Jeep Cherokee 4x4



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