The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Anyone know if the 99+ IFS front ends are the same as the 88+?

Russell · 10-11-2007, 12:55 AM

I crawled under my 96 and took a look at how it is mounted, and it appears to be identical to the 2000's front end... drain plugs are in the same place, casting looks identical, and the mounting places are all the same. The only significant difference I could find is how the outputs looked, on my 96 they are round, on the 2000 they are sort of shaped like a flower. The bolt pattern looks the same regardless, just a bit less material on the 2000.

The rear diff is a direct bolt in, the springs are the same length, and the perch is the same width. The e-brake cable from the 2000 appears to be the same as on my 96, so I think I might be alright there too

I suppose it is close enough to be worth the effort to pull the diff from the 2000 and find a 88 - 98 with the diff pulled to see if it'll fit. If it does, and if the electrical stuff is all compatable, I'll make the swap over christmas break. 4.10s with a locker and good rear brakes would be wonderful

10-11-2007, 12:55 AM	#3
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	Re: Anyone know if the 99+ IFS front ends are the same as the 88+? I crawled under my 96 and took a look at how it is mounted, and it appears to be identical to the 2000's front end... drain plugs are in the same place, casting looks identical, and the mounting places are all the same. The only significant difference I could find is how the outputs looked, on my 96 they are round, on the 2000 they are sort of shaped like a flower. The bolt pattern looks the same regardless, just a bit less material on the 2000. The rear diff is a direct bolt in, the springs are the same length, and the perch is the same width. The e-brake cable from the 2000 appears to be the same as on my 96, so I think I might be alright there too I suppose it is close enough to be worth the effort to pull the diff from the 2000 and find a 88 - 98 with the diff pulled to see if it'll fit. If it does, and if the electrical stuff is all compatable, I'll make the swap over christmas break. 4.10s with a locker and good rear brakes would be wonderful __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)