5X100 according to this site http://www.discountedwheelwarehouse.com/Pontiac___Vehicle_Bolt_Pattern_Reference.cfm
Yes 5x115 is a typical GM bolt pattern. Common for late 80's through early 00's
1983 Chevrolet S-10 Pickup Bolt Pattern: 5x120.65. Center Bore: 70.3. Hardware:12x1.50 Lug Offset: 00-20mm
on ebay search for NEW STARTER CHEVY 4.3L S10 BLAZER, C SERIES TRUCK 99 00 01 02 03 04 & ASTRO VAN this gives you an image.
Previous poster stated that 5x115mm is for 96-00 GM cars... Wrong...I have a 207 Impala with that bolt pattern and bought GM factory rims off a 2005 Caddy CTS that fit my Impala. Both are 5 x 115mm and GM still uses that bolt pattern today and as early as 1978 on Malibu`s. Very common.
2000 at 12:00 1-1-00
00
10:00 am - 6:00 pm, any day that ends in a 3 or an 8.
$370-00
It's 44lb then two 90 degree turns
They are the same. In the late month of 1999 Chevy completely REDESIGNED ALL the engines and transmissions. SO the 2000 4.3L engine will not bolt up to the frame of the 97 truck or even bolt up to the transmission in the 97. I don't know where you got your information for the above statement but that is completely incorrect. the 97 and 00 4.3 are 100 percent interchangeable. same bolt pattern at the frame mounts and the bell housing. you must be thinking of the change from the 95-96 version. they still have the same bolt pattern but run comparable but different fuel systems as well as different heads and cam. the engine mounts and bell housing pattern is still exactly the same. the 4.3 and v8 shared the same pattern even into the LS series.
Lift the bolt handle, pull the bolt to the rear until it stops, push forward on the safety lever and out it comes. Whan putting it back in make sure the bolt remains cocked and aligned properly so it slides in easily. Firing pin at 12:00 and so forth.