Dewitts Doesn't Fit
Thread Starter
Racer
Joined: Feb 2007
Posts: 270
Likes: 1
From: Niceville Fl
Dewitts Doesn't Fit
72 small block. I've spent the last three hours trying to install my Dewitts with dual SPAL. The fans don't clear the upper control arms and the top hose pipe is in the way of the driver's side upper bracket. I've sent an email to Dewitts tech department, but won't get an answer today. Anyone else ever have a similar issue?
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
The dual fans just fit between the upper control arms but occasionally we have to slide the fans to the left or right due to variances in front end mounting position, frames, and/or the amount of A-arm shims. We mount the fans in a position that fits 99% of the time but once it a while we have someone that has to re-position them. All you have to do is remove the six phillips head screw, (three on top and three on the bottom) slide the fan over and drive the self tapping screws back into the upper and lower hat channel.
The upper hose problem might have something to do with bracket or the belt that is used. The wrong mounting bracket or an oversized belt can change the position of things or the hose itself might be an aftermarket replacement. Our upper hose connection is exactly the same as a factory radiator so I'd look elsewhere for the problem here.
The upper hose problem might have something to do with bracket or the belt that is used. The wrong mounting bracket or an oversized belt can change the position of things or the hose itself might be an aftermarket replacement. Our upper hose connection is exactly the same as a factory radiator so I'd look elsewhere for the problem here.
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Yup I was one of the 1% that it hit the upper control arm. I called Tom and he explained the situation and I moved the fans over enough to clear and they have been running fine for a number of years now. I never even think about the cooling system now.
Thread Starter
Racer
Joined: Feb 2007
Posts: 270
Likes: 1
From: Niceville Fl
Tom, thanks for replying. There was a little more to it on my car than just sliding the fans over, but I've got the unit in. The bracket I was referring to is the bracket that holds the radiator in place. I had to take the Dremel to it to get it to clear the upper hose connection. I was part of the 1% that didn't get the "drop in" package, but it's in now so all is well.
Terrorizing Orange Cones
Joined: Oct 2007
Posts: 2,572
Likes: 17
From: Northern CO
I have Tom's SP020 model with a single Spal in my '72. I'm guessing yours is the wider application than mine to have 2 fans.
This DeWitt's unit has been a true asset and helps to build confidence on those long hauls, keeping cooling temps in spec.
This DeWitt's unit has been a true asset and helps to build confidence on those long hauls, keeping cooling temps in spec.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
1% here. The driver side control arm bumped up against the spal fan shroud. Was not much, so I did not bother moving it to the side. Other than that fit great. All good now. I installed a LED so I could tell when the fans are engaged.
Dustup7T2--- Coool Avatar...
Dustup7T2--- Coool Avatar...
