CPP 2.5" drop spindles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JustBarrett · 04-01-2015, 01:34 PM

First off I'm new to forum and this is my first post. I just bought Cpp 2.5" drop spindles from Summit Racing. Have anyone else experienced any problems with these spindles. Mine have the casting number for the 73-87 drop spindles on the back of them. However came with a "special note" that stated they had been modified to fit the 71-72 pickups. First off I don't believe the ball joints sink as far as they should. But believe this was done to prevent clearance issues with the a frame arms. I tested my old ball joints and new ball joints and they both go in the same distance. Another thing is my brake dust shield won't fit without modifications. The lower a frame arm hits shield. But my main concern is the outer wheel bearing. The outer bearing doesn't look like its as far back on spindle as it should be. It's half way on spindle and part ways on the threaded part. I know my back bearing is seating properly because when I noticed the outer bearing problem I took the seal out so I could see back bearing. And the wheel has a little play up and down. Ball joints are tight. Everything is new brakes, rotor, spindle, ball joints, tie rods, etc. I also cut 1 round off spring too. Caliber goes on fine. Wheel spins fine also no drags and is smooth as can be. I haven't tore drivers side apart yet due to having too move truck around to have room to work. Any input would be helpful. Just don't wanna ruin a brand new set of spindles. Here's some more info on my truck. 1972 c10 Cheyenne 350v8 th350 factory air conditioning power steering power disc/drum brakes. Just wanting to hear other people's experiences, issues, suggestions.

**michael bustamante** · 04-01-2015, 01:54 PM

whats the part # on them?

**67 cst swb** · 04-01-2015, 02:05 PM

Welcome to the board !

JustBarrett · 04-01-2015, 05:09 PM

The part number on the box they came in and are my receipt is CP4S3. The part number engraved on spindle is CP4S4. They came with a "note" saying that there castes with that part number but modified to fit 71-72 c10s. I don't have receipt in front of me. But when I do I'll post it word for word.

04-01-2015, 01:34 PM	#1
JustBarrett Registered User Join Date: Mar 2015 Location: Meadowview VA Posts: 2	CPP 2.5" drop spindles First off I'm new to forum and this is my first post. I just bought Cpp 2.5" drop spindles from Summit Racing. Have anyone else experienced any problems with these spindles. Mine have the casting number for the 73-87 drop spindles on the back of them. However came with a "special note" that stated they had been modified to fit the 71-72 pickups. First off I don't believe the ball joints sink as far as they should. But believe this was done to prevent clearance issues with the a frame arms. I tested my old ball joints and new ball joints and they both go in the same distance. Another thing is my brake dust shield won't fit without modifications. The lower a frame arm hits shield. But my main concern is the outer wheel bearing. The outer bearing doesn't look like its as far back on spindle as it should be. It's half way on spindle and part ways on the threaded part. I know my back bearing is seating properly because when I noticed the outer bearing problem I took the seal out so I could see back bearing. And the wheel has a little play up and down. Ball joints are tight. Everything is new brakes, rotor, spindle, ball joints, tie rods, etc. I also cut 1 round off spring too. Caliber goes on fine. Wheel spins fine also no drags and is smooth as can be. I haven't tore drivers side apart yet due to having too move truck around to have room to work. Any input would be helpful. Just don't wanna ruin a brand new set of spindles. Here's some more info on my truck. 1972 c10 Cheyenne 350v8 th350 factory air conditioning power steering power disc/drum brakes. Just wanting to hear other people's experiences, issues, suggestions.

04-01-2015, 01:54 PM	#2
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,814	Re: CPP 2.5" drop spindles whats the part # on them? __________________ 1967custom

04-01-2015, 02:05 PM	#3
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: CPP 2.5" drop spindles Welcome to the board ! __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White 2002 Chevrolet 1500HD 4x4 Crew Cab 6.0L 4L80E Red

04-01-2015, 05:09 PM	#4
JustBarrett Registered User Join Date: Mar 2015 Location: Meadowview VA Posts: 2	Re: CPP 2.5" drop spindles The part number on the box they came in and are my receipt is CP4S3. The part number engraved on spindle is CP4S4. They came with a "note" saying that there castes with that part number but modified to fit 71-72 c10s. I don't have receipt in front of me. But when I do I'll post it word for word.



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